Editing World 23

{{italic title|id=yes}}
{{world infobox
|title=World 23
|image=[[File:Dr Mario World World 23.jpg|150px]]
|game=''[[Dr. Mario World]]''
|levels=44
|before=[[World 22|<<]]
|after=[[World 24|>>]]
}}

'''World 23''' is the interior of [[Bowser's Castle]] in ''[[Dr. Mario World]]''. The first area is available as of 10 PM PT on Dec. 16, 2020<ref name="T1">https://twitter.com/Drmarioworld_EN/status/1338687756441186306 ''Twitter''</ref>, while the second area, challenge stages and special stage are available as of 1 AM PT on Dec. 28, 2020<ref name="T2">Drmarioworld_EN (December 31, 2020). [https://twitter.com/Drmarioworld_EN/status/1343459216103759874 ''Twitter'']. Retrieved December 31, 2020.</ref>.

When an area is cleared, [[Bone Goomba]]s, [[Thwomp]]s and [[Bony Beetle]]s appear. The [[virus]]es featured in the regular stages are red, yellow and light-blue.
{{br|toc=1}}
==Area 1==
{| style="text-align: center; width: 100%; margin: 0 auto 10px auto; border-collapse: collapse; font-family:Arial;" border="1" cellpadding="1" cellspacing="1"
|-style="background: #ABC;"
!width="1%"|Image
!width="3%"|Stage
!width="3%"|Best Doctors
!width="20%"|Overview
|-
|[[File:DrMarioWorld-Stage881.jpg|150px]]
|Stage 881
|[[File:DrMarioWorld - Icon DK.png|link=Donkey Kong]]<br>[[Donkey Kong|Dr. Donkey Kong]]
[[File:DrMarioWorld - Icon Dolphin.png|link=Dolphin]]<br>[[Dolphin|Dr. Dolphin]]
|align=left|Starting with 35 capsules, the objective of this stage is to eliminate all viruses (32) and collect all [[virus coin]]s (9). 

In this stage, large three-by-three virus coins are arranged in three rows and three columns. Behind each of five of the virus coins arranged in an "X" pattern is an [[electric exploder]] surrounded by [[bubble]]s. Behind the other virus coins, there are [[exploder]]s surrounded by [[ice (Dr. Mario World)|fully-frozen]] viruses.
|-
|[[File:DrMarioWorld-Stage882.jpg|150px]]
|Stage 882
|[[File:DrMarioWorld - Icon8BitDrMario.png|link=Dr. Mario]]<br>[[Dr. Mario|8-Bit Dr. Mario]]
[[File:DrMarioWorld - Icon Daisy.png|link=Princess Daisy]]<br>[[Princess Daisy|Dr. Daisy]]
|align=left|Starting with 34 capsules, the objective of this stage is to eliminate all viruses (18) and collect all purple coins (27). 

In this stage, there are two groups that each consists of cages and its corresponding [[lock block]], [[barrel]]s and [[pop cannon]]s separated by a diagonal line of purple coins. The partially-damaged barrels contain [[floatie virus]]es, while the undamaged barrels are either empty or have caged coins. The cages contain [[shell]]s and viruses.

[[Caged coin|Purple coins]] are unlocked in the following sequence:
# The 9 coins in a diagonal line starting from the left of the ninth row to the right of the first row.
# The 18 coins inside barrels. 
|-
|[[File:DrMarioWorld-Stage883.jpg|150px]]
|Stage 883
|[[File:DrMarioWorld - Icon BabyPeach.png|link=Baby Peach]]<br>[[Baby Peach|Dr. Baby Peach]]
[[File:DrMarioWorld - Icon Ludwig.png|link=Ludwig von Koopa]]<br>[[Ludwig|Dr. Ludwig]]
|align=left|Starting with 29 capsules, the objective of this stage is to eliminate all viruses (29) and collect all [[coin]]s from [[Coin Block]]s (42). 

In this stage, the half-frozen [[Brick Block]]s (all containing coins) and [[crate]]s form a diamond where fully-frozen viruses and ice cubes are arranged in a checkered pattern. Outside the diamond of objects are [[dust virus]]es and shells. 
|-
|[[File:DrMarioWorld-Stage884.jpg|150px]]
|Stage 884
|[[File:DrMarioWorld - Icon Wendy.png|link=Wendy O. Koopa]]<br>[[Wendy|Dr. Wendy]]
[[File:DrMarioWorld - Icon Roy.png|link=Roy Koopa]]<br>[[Roy|Dr. Roy]]
|align=left|Starting with 32 capsules, the objective of this stage is to eliminate all viruses (27) and break all Brick Blocks (27).

In this stage, a group of [[Cloud (object)|clouded]] viruses are amidst crates and Brick Blocks arranged in a checkered pattern. Of the Brick Blocks, the first and last ones in the topmost row and all of them in the second row have hidden pop cannons.
|-
|[[File:DrMarioWorld-Stage885.jpg|150px]]
|<span style="color:darkred">Stage 885
'''(Hard)'''</span>
|[[File:DrMarioWorld - Icon BabyMario.png|link=Baby Mario]]<br>[[Baby Mario|Dr. Baby Mario]]
[[File:DrMarioWorld - Icon Ludwig.png|link=Ludwig von Koopa]]<br>[[Ludwig|Dr. Ludwig]]
|align=left|Starting with 34 capsules, the objective of this stage is to eliminate all viruses (22), collect all purple coins (26) and collect all [[key]]s (8). 

In this stage, purple coins are located in groups around the top-left, top-right, bottom-left and bottom-right. The groups of purple coins around the bottom-left and top-right are nearby keys and barrels containing [[Key Door|doors]]. Separating the groups of purple coins, keys and doors are viruses, with the ones in the fourth and fifth rows being fully-frozen. Between the groups of viruses are [[Empty Block]]s.

Purple coins are unlocked in the following sequence:
# The 9 coins within the first three rows and the first three columns.
# The 9 coins within the sixth to eighth rows and the last three columns.
# The 4 rightmost coins in the first row.
# The 4 leftmost coins in the eighth row.
|-
|[[File:DrMarioWorld-Stage886.jpg|150px]]
|Stage 886
|[[File:DrMarioWorld - Icon Larry.png|link=Larry Koopa]]<br>[[Larry|Dr. Larry]]
[[File:DrMarioWorld - Icon Toad.png|link=Toad]]<br>[[Toad|Dr. Toad]]
|align=left|Starting with 27 capsules, the objective of this stage is to collect all coins from Coin Blocks (27) and collect all virus coins (27). The only colors available in this stage are red and light-blue.

In this stage, the Brick Blocks (all containing coins) are arranged in a line that separates [[colorful crate]]s in a checkered pattern and empty barrels in a checkered pattern. The side with barrels contain floatie viruses in its gaps, and both sides have exploders in some of the gaps. Virus coins are located behind each floatie virus in its initial position and the side with colorful crates.
|-
|[[File:DrMarioWorld-Stage887.jpg|150px]]
|Stage 887
|[[File:DrMarioWorld - Icon Fire Mario.png|link=Fire Mario]]<br>[[Fire Mario|Dr. Fire Mario]]
[[File:DrMarioWorld - Icon Fire Luigi.png|link=Fire Mario]]<br>[[Fire Mario|Dr. Fire Luigi]]
|align=left|Starting with 35 capsules, the objective of this stage is to eliminate all viruses (22) and collect all keys (6).

In this stage, there are three layers of rectangles. The outermost layer consists of colorful crates with barrels containing doors and a key, with two keys below it. The middle layer consists of viruses where some of them are half-frozen. The innermost layer consists of crates with keys and fully-frozen doors on its inside.
|-
|[[File:DrMarioWorld-Stage888.jpg|150px]]
|Stage 888
|[[File:DrMarioWorld - Icon Roy.png|link=Roy Koopa]]<br>[[Roy|Dr. Roy]]
[[File:DrMarioWorld - Icon Bowser.png|link=Bowser]]<br>[[Bowser|Dr. Bowser]]
|align=left|Starting with 32 capsules, the objective of this stage is to break all crates (21) and collect all purple coins (20). 

In this stage, purple coins (caged and uncaged) are located in the first three rows, where many of them are caged with its corresponding lock block in the middle of the third row, fully-frozen. Below the purple coins are a group of crates with viruses hugging them. The bottom-most row consists of a pop cannon [[Handy Bottle|handy bottle]] and a [[Flask (object)|flask]]. The fully-filled flask in this stage will shoot out either viruses or exploders.

Purple coins are unlocked in the following sequence:
# The 10 coins in the even-numbered columns within the first three rows.
# The 10 coins in the odd-numbered columns within the first two rows.
|-
|[[File:DrMarioWorld-Stage889.jpg|150px]]
|Stage 889
|[[File:DrMarioWorld - Icon Fire Peach.png|link=Fire Mario]]<br>[[Fire Peach|Dr. Fire Peach]]
[[File:DrMarioWorld - Icon Ludwig.png|link=Ludwig von Koopa]]<br>[[Ludwig|Dr. Ludwig]]
|align=left|Starting with 33 capsules, the objective of this stage is to eliminate all viruses (31) and collect all keys (5). 

In this stage, viruses are arranged in a checkered pattern with Brick Blocks and empty barrels within most of the gaps. Exploders are hidden inside the Brick Blocks starting from the sixth row upwards except for the middle one in the sixth row. Between the assortment of objects are keys and doors are located in the odd-numbered columns. 
|-
|[[File:DrMarioWorld-Stage890.jpg|150px]]
|<span style="color:darkred">Stage 890
'''(Hard)'''</span>
|[[File:DrMarioWorld - Icon King Boo.png|link=King Boo]]<br>[[King Boo|Dr. King Boo]]
[[File:DrMarioWorld - Icon Blooper.png|link=Blooper]]<br>[[Blooper|Dr. Blooper]]
|align=left|Starting with 30 capsules, the objective of this stage is to eliminate all red viruses (19). The only colors available in this stage are red and yellow.

In this stage, there are only red and yellow viruses and capsules. The viruses are in various states, namely being clouded, fully-frozen and inside bubbles. Some of the viruses are floatie viruses. Crates are also found throughout the stage. The final revealed row is a row of Empty Blocks.

This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 7 lines are introduced.
|-
|[[File:DrMarioWorld-Stage891.jpg|150px]]
|Stage 891
|[[File:DrMarioWorld - Icon Toad.png|link=Toad]]<br>[[Toad|Dr. Toad]]
[[File:DrMarioWorld - Icon BabyLuigi.png|link=Baby Mario]]<br>[[Baby Luigi|Dr. Baby Luigi]]
|align=left|Starting with 33 capsules, the objective of this stage is to collect all virus coins (35) and collect all keys (3). 

In this stage, the Brick Blocks and empty barrels are patterned in a spiral formation, with clouded viruses and keys near the spiral. The Brick Blocks contain hidden viruses, and those hidden viruses each cover a virus coin. The barrels also each cover a virus coin. The filled flasks in this stage will shoot out either viruses or electric exploders. 
|-
|[[File:DrMarioWorld-Stage892.jpg|150px]]
|Stage 892
|[[File:DrMarioWorld - Icon Boo.png|link=Boo]]<br>[[Boo|Dr. Boo]]
[[File:DrMarioWorld - Icon Fire Rosalina.png|link=Fire Mario]]<br>[[Fire Mario|Dr. Fire Rosalina]]
|align=left|Starting with 30 capsules, the objective of this stage is to eliminate all viruses (39) and break all [[Barrier (Dr. Mario World)|barriers]] (9). 

In this stage, crates and cages are arranged in upside-down "V" formations. Below the crates are bubbles containing electric exploders, while between the crates and cages are bubbles containing viruses and lock blocks. The yellow cages contain electric exploders while the red cages contain barriers. Above the barriers are more viruses, with some of them fully-frozen.
|-
|[[File:DrMarioWorld-Stage893.jpg|150px]]
|Stage 893
|[[File:DrMarioWorld - Icon Larry.png|link=Larry Koopa]]<br>[[Larry|Dr. Larry]]
[[File:DrMarioWorld - Icon Peach.png|link=Peach]]<br>[[Princess Peach|Dr. Peach]]
|align=left|Starting with 39 capsules, the objective of this stage is to eliminate all viruses (17) and break all colorful crates (41). 

In this stage, colorful crates are arranged in groups of threes or fours, where clouded floatie viruses are near them. There is a pop cannon handy bottle at the bottom-left corner.
|-
|[[File:DrMarioWorld-Stage894.jpg|150px]]
|Stage 894
|[[File:DrMarioWorld - Icon Luma.png|link=Luma]]<br>[[Luma|Dr. Luma]]
[[File:DrMarioWorld - Icon Bowser.png|link=Bowser]]<br>[[Bowser|Dr. Bowser]]
|align=left|Starting with 32 capsules, the objective of this stage is to eliminate all viruses (44) and collect all keys (4). 

In this stage, the half-frozen viruses and clouded viruses are arranged in rows of two in the third to fourth columns and the sixth to seventh columns within the second to ninth rows. In the middle column, there are viruses and Brick Blocks. The lock blocks are located in the topmost row and are half-frozen next to half-frozen. The keys and doors are located in the two leftmost and two rightmost columns, where the ones at the side have bubbles (some with viruses and pop cannons) between them, while the ones nearer to the center have empty cages between them.
|-
|[[File:DrMarioWorld-Stage895.jpg|150px]]
|<span style="color:darkred">Stage 895
'''(Hard)'''</span>
|[[File:DrMarioWorld - Icon Morton.png|link=Morton Koopa Jr.]]<br>[[Morton|Dr. Morton]]
[[File:DrMarioWorld - Icon Fire Peach.png|link=Fire Mario]]<br>[[Fire Peach|Dr. Fire Peach]]
|align=left|Starting with 29 capsules, the objective of this stage is to eliminate all viruses (32), collect all coins from Coin Blocks (36) and collect all keys (1). 

In this stage, viruses are arranged in columns of two, with the ones in the four leftmost columns inside bubbles near [[bubble machine]]s and the ones in the four rightmost columns half-frozen near [[ice fan]]s. Each side also has purple coins and six Brick Blocks all containing coins. The middle column contains caged coins between the key and the door.

Purple coins are unlocked in the following sequence:
# The 12 coins near the viruses within the four leftmost columns and the four leftmost columns, with 6 on each side. 
# The 8 coins between the key and the door in the middle column.
|-
|[[File:DrMarioWorld-Stage896.jpg|150px]]
|Stage 896
|[[File:DrMarioWorld - Icon KoopaTroopa.png|link=Koopa Troopa]]<br>[[Koopa Troopa|Dr. Koopa Troopa]]
[[File:DrMarioWorld - Icon GoombaTower.png|link=Goomba Tower]]<br>[[Goomba Tower|Dr. Goomba Tower]]
|align=left|Starting with 33 capsules, the objective of this stage is to break all Brick Blocks (50) and collect all purple coins (21). The only colors available in this stage are red and yellow.

In this stage, the Brick Blocks occupy most of the first eight rows, with a few gaps in between. Below the Brick Blocks are floatie viruses that will occupy the missing spaces when they are cleared. The Brick Blocks contain hidden purple coins (caged and uncaged) in 21 of them and yellow floatie viruses in the others. 

Purple coins are unlocked in the following sequence:
# The 7 coins hidden inside Brick Blocks in the eighth row.
# The 7 coins hidden inside the middle seven Brick Blocks in the first row.
# The coins hidden inside the Brick Blocks in between the leftmost and rightmost Brick Blocks in the second, third and seventh rows, for a total of 7 coins.
|-
|[[File:DrMarioWorld-Stage897.jpg|150px]]
|Stage 897
|[[File:DrMarioWorld - Icon King Boo.png|link=King Boo]]<br>[[King Boo|Dr. King Boo]]
[[File:DrMarioWorld - Icon Lemmy.png|link=Lemmy Koopa]]<br>[[Lemmy|Dr. Lemmy]]
|align=left|Starting with 28 capsules, the objective of this stage is to pop all bubbles (20) and collect all virus coins (9). 

In this stage, cages are found within the even-numbered columns in the even-numbered rows from the second to eighth rows, where they are in between bubbles. Above each bubble is a barrel, where three of them contain lock blocks and the rest contain viruses. Floatie viruses are found in the ninth row.
|-
|[[File:DrMarioWorld-Stage898.jpg|150px]]
|Stage 898
|[[File:DrMarioWorld - Icon Wendy.png|link=Wendy O. Koopa]]<br>[[Wendy|Dr. Wendy]]
[[File:DrMarioWorld - Icon BabyPeach.png|link=Baby Peach]]<br>[[Baby Peach|Dr. Baby Peach]]
|align=left|Starting with 33 capsules, the objective of this stage is to eliminate all viruses (24) and collect all coins from Coin Blocks (36). 

In this stage, viruses are scattered throughout the first seven rows among Brick Blocks, crates and empty barrels. The Brick Blocks directly below the crates are all Coin Blocks, while the rest of the Brick Blocks contain hidden viruses except for the third one in the second row.
|-
|[[File:DrMarioWorld-Stage899.jpg|150px]]
|Stage 899
|[[File:DrMarioWorld - Icon Ludwig.png|link=Ludwig von Koopa]]<br>[[Ludwig|Dr. Ludwig]]
[[File:DrMarioWorld - Icon DK.png|link=Donkey Kong]]<br>[[Donkey Kong|Dr. Donkey Kong]]
|align=left|Starting with 32 capsules, the objective of this stage is to eliminate all viruses (16), break all barriers (28) and collect all purple coins (17). 

In this stage, the uncaged purple coins are fully-frozen and form a cross, where each end has a pop cannon or shell. Surrounding them are barriers. Within each corner where the barriers are, there is a fully-frozen caged purple coin surrounded by empty barrels and half-frozen viruses.

Purple coins are unlocked in the following sequence:
# The fully-frozen coins in the middle column and the fifth row, for a total of 13 coins.
# The fully-frozen coins surrounded by barrels, for a total of 4 coins.
|-
|[[File:DrMarioWorld-Stage900.jpg|150px]]
|<span style="color:darkred">Stage 900
'''(Hard)'''</span>
|[[File:DrMarioWorld - Icon Dry Bowser.png|link=Dry Bowser]]<br>[[Dry Bowser|Dr. Dry Bowser]]
[[File:DrMarioWorld - Icon BowserJr.png|link=Bowser Jr.]]<br>[[Bowser Jr.|Dr. Bowser Jr.]]
|align=left|The last stage of the first area and starting with 33 capsules, the objective of this stage is to eliminate all viruses (52), pop all bubbles (57) and collect all keys (14). 

Within the beginning of this stage and the next two revealed rows, there are barrels and bubbles, as well as keys and doors in the odd-numbered columns. The barrels in the fifth row and the second-revealed row contain pop cannons, while the ones in the first two rows and the sixth row contain viruses (the rest of the barrels are empty). The bubbles in the first two rows and the sixth row contain exploders while the bubbles in the fifth row contain pop cannons. 

Within the third-revealed row to the seventh-revealed row, there are Brick Blocks and bubbles, as well as keys in the even-numbered columns with their corresponding doors in the eighth-revealed row. The bubbles in the seventh-revealed row contain electric exploders. 

Within the ninth-revealed row to the final-revealed row, there are viruses where the one in the ninth-revealed row are half-frozen while the rest are inside bubbles. Exploders are located in the tenth-revealed row. The doors are in the odd-numbered columns with their corresponding keys in the eighth-revealed row.

This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 11 lines are introduced.

When cleared, the rest of the first area in the world map gets cleared of viruses. Players also obtain the [[Bone Goomba]] assistant upon completing this stage.
|}

==Area 2==
{| style="text-align: center; width: 100%; margin: 0 auto 10px auto; border-collapse: collapse; font-family:Arial;" border="1" cellpadding="1" cellspacing="1"
|-style="background: #ABC;"
!width="1%"|Image
!width="3%"|Stage
!width="3%"|Best Doctors
!width="20%"|Overview
|-
|[[File:DrMarioWorld-Stage901.jpg|150px]]
|Stage 901
|[[File:DrMarioWorld - Icon Larry.png|link=Larry Koopa]]<br>[[Larry|Dr. Larry]]
[[File:DrMarioWorld - Icon Peach.png|link=Peach]]<br>[[Princess Peach|Dr. Peach]]
|align=left|Starting with 38 capsules, the objective of this stage is to eliminate all viruses (13). 

In this stage, there are a group of colorful crates where the middle column also has a pop cannon, virus and an exploder lined up, as well as four groups of empty barrels each with an exploder at a corner and surrounding a floatie virus. The leftmost and rightmost columns have viruses in between Empty Blocks.
|-
|[[File:DrMarioWorld-Stage902.jpg|150px]]
|Stage 902
|[[File:DrMarioWorld - Icon Luigi.png|link=Luigi]]<br>[[Luigi|Dr. Luigi]]
[[File:DrMarioWorld - Icon GoombaTower.png|link=Goomba Tower]]<br>[[Goomba Tower|Dr. Goomba Tower]]
|align=left|Starting with 32 capsules, the objective of this stage is to eliminate all viruses (36), collect all purple coins (24) and collect all keys (6). 

In this stage, there are nine groups of half-frozen viruses arranged in two-by-twos, where Brick Blocks and purple coins are located above and to the right of them. Around the top-right and top-left corners from those groups are keys and doors.

Purple coins are unlocked in the following sequence:
# The 2 coins within the eighth and ninth rows in the third column. 
# The 2 coins within the fourth and fifth columns in the seventh row.
# The 2 coins within the fifth and sixth rows in the sixth column. 
# The 2 coins within the seventh and eighth columns in the fourth row.
# The 2 coins within the second and third rows in the rightmost column. 
# The 2 coins within the leftmost and second columns in the fourth row.
# The 2 coins within the second and third rows in the third column. 
# The 2 coins within the fourth and fifth columns in the topmost row.
# The 2 coins within the leftmost and second columns in the topmost row.
# The 2 coins within the eighth and ninth rows in the sixth column. 
# The 2 coins within the eighth and ninth rows in the rightmost column. 
# The 2 coins within the seventh and eighth columns in the seventh row.
|-
|[[File:DrMarioWorld-Stage903.jpg|150px]]
|Stage 903
|[[File:DrMarioWorld - Icon Wendy.png|link=Wendy O. Koopa]]<br>[[Wendy|Dr. Wendy]]
[[File:DrMarioWorld - Icon Larry.png|link=Larry Koopa]]<br>[[Larry|Dr. Larry]]
|align=left|Starting with 33 capsules, the objective of this stage is to eliminate all viruses (41) and collect all coins from Coin Blocks (27). 

In this stage, there are nine groups of colorful crates each with a Brick Block containing coins, where nearby them are viruses and dust clouds. Most of the dust clouds are dust viruses, but four of them cover exploders: the first one in the first row, the seventh one in the third row, the third one in the sixth row and the second one in the seventh row. 
|-
|[[File:DrMarioWorld-Stage904.jpg|150px]]
|Stage 904
|[[File:DrMarioWorld - Icon Fire Rosalina.png|link=Fire Mario]]<br>[[Fire Mario|Dr. Fire Rosalina]]
[[File:DrMarioWorld - Icon BabyPeach.png|link=Baby Peach]]<br>[[Baby Peach|Dr. Baby Peach]]
|align=left|Starting with 35 capsules, the objective of this stage is to eliminate all viruses (35). 

In this stage, there is a group of fully-frozen floatie viruses surrounded by empty cages and crates. Below the group is its lock block and six rows of three viruses, and to the left and right of this group are a column of four viruses on each side. There are also two exploder handy bottles in the topmost row.
|-
|[[File:DrMarioWorld-Stage905-Upd1.jpg|150px]]
|<span style="color:darkred">Stage 905
'''(Hard)'''</span>
|[[File:DrMarioWorld - Icon BabyPeach.png|link=Baby Peach]]<br>[[Baby Peach|Dr. Baby Peach]]
[[File:DrMarioWorld - Icon BabyDaisy.png|link=Baby Daisy]]<br>[[Baby Daisy|Dr. Baby Daisy]]
|align=left|Starting with 30 capsules, the objective of this stage is to eliminate all viruses (60).

In this stage, clouds occupy a lot of the first nine rows, where viruses are scattered throughout alongside three rows of six ice fans where half of them are fully-frozen. A half-frozen shell is also located in the top-right corner. The clouds in this stage contain an exploder in the middle of the sixth row and the a pop cannon in the rightmost on the fourth row, as well as viruses in the others.

Prior to version 2.2.4, the stage layout was different. The following changes were made:
* The objective of this stage is changed from breaking all clouds (50) to eliminating all viruses (60). 
* Capsule amount is increased from 29 to 30.
* The shell in the top-right corner is changed to become half-frozen.
* Half of the ice fans changed to become fully-frozen.
* The clouds in this stage are changed to contain objects, with an exploder in the middle of the sixth row and the a pop cannon in the rightmost on the fourth row, as well as viruses in the others. Clouds that do not contain anything are solid and do not become transparent, but like crates, making capsule matches next to them or eliminating them will remove them. 
|-
|[[File:DrMarioWorld-Stage906.jpg|150px]]
|Stage 906
|[[File:DrMarioWorld - Icon Dolphin.png|link=Dolphin]]<br>[[Dolphin|Dr. Dolphin]]
[[File:DrMarioWorld - Icon Yoshi.png|link=Yoshi]]<br>[[Yoshi|Dr. Yoshi]]
|align=left|Starting with 32 capsules, the objective of this stage is to eliminate all viruses (28) and collect all keys (10). 

In this stage, rows of empty bubbles are found among viruses, crates, keys and doors. In addition to them, there are also electric exploders and a pop cannons. A few of the bubbles are filled, including two pop cannons and a door.
|-
|[[File:DrMarioWorld-Stage907.jpg|150px]]
|Stage 907
|[[File:DrMarioWorld - Icon Baby Wario.png|link=Baby Wario]]<br>[[Baby Wario|Dr. Baby Wario]]
[[File:DrMarioWorld - Icon Mario.png|link=Dr. Mario]]<br>[[Dr. Mario]]
|align=left|Starting with 37 capsules, the objective of this stage is to eliminate all viruses (26), break all barriers (10) and collect all purple coins (21). 

In this stage, the crates and barriers form a border that separates the viruses and Brick Blocks into two halves. Some of those viruses are half-frozen. The Brick Blocks contain purple coins (caged and uncaged).

Purple coins are unlocked in the following sequence:
# The 6 coins hidden in Brick Blocks within the sixth to eighth rows. 
# The 6 coins hidden in Brick Blocks within the second to fourth rows. 
# The 1 coin in the ninth row.
# The 1 coin in the seventh row.
# The rightmost coin (1) in the fifth row.
# The fourth coin (1) in the fifth row.
# The third coin (1) in the fifth row.
# The second coin (1) in the fifth row.
# The leftmost coin (1) in the fifth row.
# The 1 coin in the third row.
# The 1 coin in the topmost row.
|-
|[[File:DrMarioWorld-Stage908.jpg|150px]]
|Stage 908
|[[File:DrMarioWorld - Icon Wendy.png|link=Wendy O. Koopa]]<br>[[Wendy|Dr. Wendy]]
[[File:DrMarioWorld - Icon Blooper.png|link=Blooper]]<br>[[Blooper|Dr. Blooper]]
|align=left|Starting with 36 capsules, the objective of this stage is to eliminate all viruses (12), collect all coins from Coin Blocks (60) and collect all purple coins (20). 

In this stage, there are rows of three floatie viruses and columns of three floatie viruses surrounded by Brick Blocks (all containing coins) and purple coins (caged and uncaged). Each group of floatie viruses has one that is half-frozen. There are also four virus coins behind caged coins and one that is covered by purple coins and a flask, although the flask does not obstruct the virus coin for the purpose of collecting it, unlike the purple coins. The filled flask in this stage will shoot out electric exploders.

Purple coins are unlocked in the following sequence:
# The 2 coins next to the floatie virus in the seventh row.
# The 2 coins next to the fourth floatie virus in the fifth row. 
# The 2 coins next to the floatie virus in the third row.
# The 2 coins next to the third floatie virus in the fifth row. 
# The 12 coins covering the four large virus coins around the corners.
|-
|[[File:DrMarioWorld-Stage909.jpg|150px]]
|Stage 909
|[[File:DrMarioWorld - Icon Rosalina.png|link=Rosalina]]<br>[[Rosalina|Dr. Rosalina]]
[[File:DrMarioWorld - Icon Boo.png|link=Boo]]<br>[[Boo|Dr. Boo]]
|align=left|Starting with 20 capsules, the objective of this stage is to eliminate all viruses (42). 

In this stage, there are a number of crates that form a maze where bubbles fill in. The bubbles contain viruses and [[Capsule Plus]], in which four of them start at +16 and two of them start at +12.
|-
|[[File:DrMarioWorld-Stage910.jpg|150px]]
|<span style="color:darkred">Stage 910
'''(Hard)'''</span>
|[[File:DrMarioWorld - Icon Ludwig.png|link=Ludwig von Koopa]]<br>[[Ludwig|Dr. Ludwig]]
[[File:DrMarioWorld - Icon Bowser.png|link=Bowser]]<br>[[Bowser|Dr. Bowser]]
|align=left|Starting with 38 capsules, the objective of this stage is to eliminate all viruses (43) and collect all keys (9). 

At the beginning of this stage, there are viruses and floatie viruses surrounded by empty barrels and exploders. The next few revealed rows have fully-frozen viruses and fully-frozen keys among crates and colorful crates. A shell and an exploder are both found in each of the fourth-revealed row and the sixth-revealed row. More empty barrels are found starting from the fifth-revealed row, while the doors (all half-frozen) for those fully-frozen keys are located in the seventh- and eighth-revealed rows. Another set of keys (all half-frozen) are located in the eighth-revealed row, with their corresponding doors (all half-frozen) two rows above them with viruses in between them.

This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 10 lines are introduced.
|-
|[[File:DrMarioWorld-Stage911.jpg|150px]]
|Stage 911
|[[File:DrMarioWorld - Icon Fire Mario.png|link=Fire Mario]]<br>[[Fire Mario|Dr. Fire Mario]]
[[File:DrMarioWorld - Icon BabyLuigi.png|link=Baby Mario]]<br>[[Baby Luigi|Dr. Baby Luigi]]
|align=left|Starting with 40 capsules, the objective of this stage is to eliminate all viruses (52). 

In this stage, the yellow caged viruses and its lock block are in the shape of the key, where it is among Brick Blocks. Most of the Brick Blocks contain hidden viruses, but the Brick Block surrounded by cages contain a hidden exploder. Six floatie viruses are located in the ninth row. 

The leftmost and rightmost columns contain bubble machines with electric exploders in between. 
|-
|[[File:DrMarioWorld-Stage912.jpg|150px]]
|Stage 912
|[[File:DrMarioWorld - Icon Wendy.png|link=Wendy O. Koopa]]<br>[[Wendy|Dr. Wendy]]
[[File:DrMarioWorld - Icon BabyPeach.png|link=Baby Peach]]<br>[[Baby Peach|Dr. Baby Peach]]
|align=left|Starting with 30 capsules, the objective of this stage is to eliminate all viruses (27), collect all coins from Coin Blocks (36) and collect all keys (4). 

In this stage, the dust clouds all cover virus coins, but the dust clouds itself do not hide anything inside. Around the dust clouds, there are rows of Brick Blocks (all containing coins) and crates, which are either between or in between rows of viruses. 
|-
|[[File:DrMarioWorld-Stage913.jpg|150px]]
|Stage 913
|[[File:DrMarioWorld - Icon Bowser.png|link=Bowser]]<br>[[Bowser|Dr. Bowser]]
[[File:DrMarioWorld - Icon Daisy.png|link=Princess Daisy]]<br>[[Princess Daisy|Dr. Daisy]]
|align=left|Starting with 28 capsules, the objective of this stage is to eliminate all viruses (25) and collect all keys (6). 

In this stage, viruses are arranged in a checkered pattern in the shape of a diamond, where colorful crates and empty cages are found among them. At the top-left corner, there is a half-frozen lock block surrounded by crates, which is targeted by a shell in the same row surrounded by crates and a pop cannon in the same column. Another pop cannon is in the same column as the shell. 
|-
|[[File:DrMarioWorld-Stage914.jpg|150px]]
|Stage 914
|[[File:DrMarioWorld - Icon Larry.png|link=Larry Koopa]]<br>[[Larry|Dr. Larry]]
[[File:DrMarioWorld - Icon Wario.png|link=Wario]]<br>[[Wario|Dr. Wario]]
|align=left|Starting with 39 capsules, the objective of this stage is to eliminate all viruses (24), break all colorful crates (21) and collect all virus coins (4). 

In this stage, the colorful crates, viruses, Brick Blocks (all containing hidden viruses) and Empty Blocks form borders for four cells, where each of them contains a virus coin covered by a floatie virus and purple coins (caged and uncaged).

Purple coins are unlocked in the following sequence:
# The 4 coins covering the bottom-left virus coin.
# The 4 coins covering the top-right virus coin.
# The 4 coins covering the bottom-right virus coin.
# The 4 coins covering the top-left virus coin.
|-
|[[File:DrMarioWorld-Stage915.jpg|150px]]
|<span style="color:darkred">Stage 915
'''(Hard)'''</span>
|[[File:DrMarioWorld - Icon Peach.png|link=Peach]]<br>[[Princess Peach|Dr. Peach]]
[[File:DrMarioWorld - Icon Waluigi.png|link=Waluigi]]<br>[[Waluigi|Dr. Waluigi]]
|align=left|Starting with 34 capsules, the objective of this stage is to eliminate all viruses (30) and collect all keys (9). 

In this stage, there are cages that contain viruses and keys, with the lock blocks in the topmost row surrounded by doors. Dust clouds that cover nothing are found throughout this stage, where viruses are found among them. Dust clouds can be cleared by making capsule matches nearby them or targeting them directly, in case capsules cannot come into contact with them.
|-
|[[File:DrMarioWorld-Stage916.jpg|150px]]
|Stage 916
|[[File:DrMarioWorld - Icon Fire Rosalina.png|link=Fire Mario]]<br>[[Fire Mario|Dr. Fire Rosalina]]
[[File:DrMarioWorld - Icon Lemmy.png|link=Lemmy Koopa]]<br>[[Lemmy|Dr. Lemmy]]
|align=left|Starting with 30 capsules, the objective of this stage is to collect all virus coins (9) and collect all purple coins (14). The only colors available in this stage are yellow and light-blue.

In this stage, exploders are found among the barrels where they are all covering virus coins, where most of them are frozen. While most barrels do not contain anything, those that do contain something have purple coins (caged and uncaged) inside them. If all the barrels are removed, the purple coins will be in the shape of a heart.

Purple coins are unlocked in the following sequence:
# The 1 coin in the middle barrel in row #4.
# The 13 coins hidden inside barrels that contain them.
|-
|[[File:DrMarioWorld-Stage917.jpg|150px]]
|Stage 917
|[[File:DrMarioWorld - Icon KoopaTroopa.png|link=Koopa Troopa]]<br>[[Koopa Troopa|Dr. Koopa Troopa]]
[[File:DrMarioWorld - Icon Toad.png|link=Toad]]<br>[[Toad|Dr. Toad]]
|align=left|Starting with 30 capsules, the objective of this stage is to eliminate all viruses (46) and collect all coins from Coin Blocks (36). 

In this stage, there is a large group of Brick Blocks with electric exploders and caged pop cannons in the corners, as well as cages and viruses inside bubbles in the middle shaped like a crosshair. The lock blocks are hidden inside the first Brick Block in the seventh row, the last Brick Block in the third row and the third Brick Block in the topmost row. Exploders are hidden inside the second and eighth Brick Blocks in both second and eighth rows, electric exploders are hidden inside the leftmost and rightmost Brick Blocks in the fifth row and shells are hidden inside the middle Brick Blocks in the topmost and ninth rows. With the exception of Coin Blocks, the rest of the Brick Blocks contain hidden viruses.

The following Brick Blocks are Coin Blocks:
* Brick Block #1 in the topmost row.
* Brick Block #4 and #9 in the second row.
* Brick Block #6 in the third row.
* Brick Block #3 and #8 in the fourth row.
* Brick Block #2 and #7 in the sixth row.
* Brick Block #4 in the seventh row.
* Brick Block #1 and #6 in the eighth row.
* Brick Block #7 in the ninth row.
|-
|[[File:DrMarioWorld-Stage918.jpg|150px]]
|Stage 918
|[[File:DrMarioWorld - Icon BowserJr.png|link=Bowser Jr.]]<br>[[Bowser Jr.|Dr. Bowser Jr.]]
[[File:DrMarioWorld - Icon Dry Bowser.png|link=Dry Bowser]]<br>[[Dry Bowser|Dr. Dry Bowser]]
|align=left|Starting with 40 capsules, the objective of this stage is to eliminate all viruses (41) and pop all bubbles (55). 

At the beginning of this stage, there are exploders in between two crates with rows of viruses and bubbles below them. In the next four revealed rows, there are bubbles checkered with viruses and electric exploders. A row of crates are in the sixth-revealed row (the row below it is empty), and above that row are fully-frozen viruses in a cross pattern with bubbles filling in the gaps.

This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 9 lines are introduced.
|-
|[[File:DrMarioWorld-Stage919.jpg|150px]]
|Stage 919
|[[File:DrMarioWorld - Icon Ludwig.png|link=Ludwig von Koopa]]<br>[[Ludwig|Dr. Ludwig]]
[[File:DrMarioWorld - Icon Baby Rosalina.png|link=Baby Rosalina]]<br>[[Baby Rosalina|Dr. Baby Rosalina]]
|align=left|Starting with 36 capsules, the objective of this stage is to collect all virus coins (19) and collect all keys (4). 

In this stage, viruses are found throughout the stage surrounding the keys and doors, where they all cover virus coins. Most of the viruses are fully-frozen. Empty barrels are also found among the viruses where they also cover virus coins. 
|-
|[[File:DrMarioWorld-Stage920.jpg|150px]]
|<span style="color:darkred">Stage 920
'''(Hard)'''</span>
|[[File:DrMarioWorld - Icon Wario.png|link=Wario]]<br>[[Wario|Dr. Wario]]
[[File:DrMarioWorld - Icon BowserJr.png|link=Bowser Jr.]]<br>[[Bowser Jr.|Dr. Bowser Jr.]]
|align=left|In the final stage of this world and starting with 40 capsules, the objective is to eliminate all viruses (33), and collect all keys (16). 

In this stage, the middle five columns contain keys, doors bubbles and lock blocks. The lock blocks are all found in the middle column with only the yellow one inside a bubble. Cages are found throughout the stage where most of them are empty except for the middle one in the seventh-revealed row, which contains a floatie virus. In addition to those, there are empty bubbles, viruses, floatie viruses, exploders and electric exploders found throughout the stage. A number of viruses are half-frozen in the sixth-revealed row and the last-revealed row.

This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 10 lines are introduced.

Once it is cleared, the remaining area of the stage map gets cleared of viruses, and players can access [[World 24]]. Upon completion, players earn a free [[Staff ticket|Staff Ticket]].
|}

==Challenge stages==
{| style="text-align: center; width: 100%; margin: 0 auto 10px auto; border-collapse: collapse; font-family:Arial;" border="1" cellpadding="1" cellspacing="1"
|-style="background: #ABC;"
!width="1%"|Image
!width="3%"|Stage
!width="3%"|Best Doctors
!width="20%"|Overview
|-
|[[File:DrMarioWorld-Stage23A.jpg|150px]]
|Stage 23A
|[[File:DrMarioWorld - Icon GoombaTower.png|link=Goomba Tower]]<br>[[Goomba Tower|Dr. Goomba Tower]]
[[File:DrMarioWorld - Icon Fire Peach.png|link=Fire Mario]]<br>[[Fire Peach|Dr. Fire Peach]]
|align=left|Within a 40 second time limit, the objective of this stage is to eliminate all viruses (29) and collect all coins from Coin Blocks (24). The only color available in this stage is pink.

In this stage, there are only pink viruses and capsules. Within the first nine rows, viruses and floatie viruses are spread throughout, where there are barrels that contain a few of the viruses, crates and Brick Blocks (all containing coins).

Completing this stage awards the player 500 coins.
|-
|[[File:DrMarioWorld-Stage23B.jpg|150px]]
|Stage 23B
|[[File:DrMarioWorld - Icon Lemmy.png|link=Lemmy Koopa]]<br>[[Lemmy|Dr. Lemmy]]
[[File:DrMarioWorld - Icon Dry Bowser.png|link=Dry Bowser]]<br>[[Dry Bowser|Dr. Dry Bowser]]
|align=left|Within a 30 second time limit, the objective of this stage is to eliminate all viruses (30). The only colors available in this stage are blue and green.

In this stage, there are only green and blue viruses and capsules. Barrels are arranged in a checkered pattern in the first nine rows where several of them contain colorful crates and a few contain Capsule Plus. Within the gaps are viruses, Capsule Plus and barrels that contain viruses or Capsule Plus. Capsule Plus in this stage range from +5 to +30 at the beginning. The Capsule Plus in this stage will increase the time limit by the corresponding number when cleared and will reduce by one for each passing second until it disappears when it reaches zero if not cleared. 

Completing this stage awards the player 500 coins.
|-
|[[File:DrMarioWorld-Stage23C.jpg|150px]]
|Stage 23C
|[[File:DrMarioWorld - Icon Roy.png|link=Roy Koopa]]<br>[[Roy|Dr. Roy]]
[[File:DrMarioWorld - Icon8BitDrMario.png|link=Dr. Mario]]<br>[[Dr. Mario|8-Bit Dr. Mario]]
|align=left|Within a 60 second time limit, the objective of this stage is to eliminate all viruses (32). The only colors available in this stage are blue and pink.

In this stage, there are only pink and blue viruses and capsules, and the empty cages spell out "OK". Electric exploders, lock blocks, cages, viruses and crates are found in the four leftmost columns and four rightmost columns, where the ones on the left are pink and the ones on the right are blue. The middle column contains bubbles with floatie viruses inside them.

Completing this stage awards the player 1000 coins and a Staff Ticket.
|}

==Special Stage==
{| style="text-align: center; width: 100%; margin: 0 auto 10px auto; border-collapse: collapse; font-family:Arial;" border="1" cellpadding="1" cellspacing="1"
|-style="background: #ABC;"
!width="1%"|Image
!width="3%"|Stage
!width="3%"|Best Doctors
!width="20%"|Overview
|-
|[[File:DrMarioWorld-SpecialStage23.jpg|150px]]
|Special Stage
|[[File:DrMarioWorld - Icon Waluigi.png|link=Waluigi]]<br>[[Waluigi|Dr. Waluigi]]
[[File:DrMarioWorld - Icon Daisy.png|link=Princess Daisy]]<br>[[Princess Daisy|Dr. Daisy]]
|align=left|Starting with  capsules, the objective of this stage is to eliminate all viruses (23) and collect all keys (7). 

In this stage, dust clouds occupy most of the stage, where cages are also found. Most of the dust clouds do not contain anything, but several of the dust clouds within the third- to fifth-revealed rows are dust viruses. Some of the cages are empty while a few of them contain viruses. Their corresponding lock blocks are found in the leftmost portion of the fourth row, the rightmost portion of the second-revealed row and the leftmost portion of the fifth-revealed row. There is also one Brick Block in the first row.

This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 6 lines are introduced.

Completing this stage awards the player 1000 coins and [[Bowser|Dr. Bowser]].
|}

==Stage layouts for scrolling stages==
<gallery>
DrMarioWorld-Stage890-Scroll.jpg|Stage 890 (all 7 lines)
DrMarioWorld-Stage900-Scroll1.jpg|Stage 900 (first 6 of 11 lines)
DrMarioWorld-Stage900-Scroll2.jpg|Stage 900 (the rest of the 11 lines after the first 6)
DrMarioWorld-Stage910-Scroll1.jpg|Stage 910 (first 8 of 10 lines)
DrMarioWorld-Stage910-Scroll2.jpg|Stage 910 (the rest of the 10 lines after the first 8)
DrMarioWorld-Stage918-Scroll1.jpg|Stage 918 (first 4 of 9 lines)
DrMarioWorld-Stage918-Scroll2.jpg|Stage 918 (the rest of the 9 lines after the first 4)
DrMarioWorld-Stage920-Scroll1.jpg|Stage 920 (first 5 of 10 lines)
DrMarioWorld-Stage920-Scroll2.jpg|Stage 920 (the rest of the 10 lines after the first 5)
DrMarioWorld-SpecialStage23-Scroll.jpg|Special Stage (all 6 lines)
</gallery>

==Stage layouts in previous versions==
<gallery>
DrMarioWorld-Stage905.jpg|Stage 905 prior to version 2.2.4
</gallery>

==Profiles==
*'''''Dr. Mario World'' Twitter:'''
**''Yellow: "New stages will be added on Dec. 16 at 10 PM PT! Maybe it's just me, but I gotta wonder why Bowser picked such a scary place to live. How does he relax around all those spikes?"''<ref name="T1"/>
**''Yellow: "Since everyone's so busy around New Year's, half a world was added early! The special stage clear reward for pushing through Bowser's Castle is... Dr. Bowser, obviously!"''<ref name="T2"/>

==References==
<references/>

{{DMW}}
[[Category:Castles]]
[[Category:Dr. Mario World worlds]]