World 23

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, while the second area, challenge stages and special stage are available as of 1 AM PT on Dec. 28, 2020.

When an area is cleared, Bone Goombas, Thwomps and Bony Beetles appear. The viruses featured in the regular stages are red, yellow and light-blue.

Area 1

Image	Stage	Best Doctors	Overview
	Stage 881	align=left|The objective of this stage is to eliminate all viruses (32) and collect all virus coins (9). In this stage, large three-by-three virus coins are arranged in three row and three columns. Behind each of five of the virus coins arranged in an "X" pattern is an electric exploder surrounded by bubbles. Behind the other virus coins are exploders surrounded by fully-frozen viruses.
	Stage 882	align=left|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, barrels and pop cannons separated by a diagonal line of purple coins. The partially-damaged barrels contain floatie viruses, while the undamaged barrels are either empty or have caged coins. The cages contain shells and viruses. 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.
	Stage 883	align=left|The objective of this stage is to eliminate all viruses (29) and collect all coins from Coin Blocks (42). In this stage, the half-frozen Brick Blocks (all containing coins) and crates form a diamond where fully-frozen viruses and ice cubes are arranged in a checkered pattern. Outside the diamond of objects are dust viruses and shells.
	Stage 884	align=left|The objective of this stage is to eliminate all viruses (27) and destroy all Brick Blocks. In this stage, a group of 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.
	Stage 885 (Hard)	align=left|The objective of this stage is to eliminate all viruses (22), collect all purple coins (26) and collect all keys (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 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 Blocks. 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.
	Stage 886	align=left|The objective of this stage is to collect all coins from Coin Blocks (27) and collect all virus coins (27). In this stage, the Brick Blocks (all containing coins) are arranged in a line that separates colorful crates 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.
	Stage 887	align=left|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.
	Stage 888	align=left|The objective of this stage is to destroy 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 jar and a 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.
	Stage 889	align=left|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.
	Stage 890 (Hard)	align=left|The objective of this stage is to eliminate all red viruses (19). 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.
	Stage 891	align=left|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 covers 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.
	Stage 892	align=left|The objective of this stage is to eliminate all viruses (39) and destroy all 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.
	Stage 893	align=left|The objective of this stage is to eliminate all viruses (17) and destroy 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 jar at the bottom-left corner.
	Stage 894	align=left|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.
	Stage 895 (Hard)	align=left|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 machines and the ones in the four rightmost columns half-frozen near ice fans. 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.
	Stage 896	align=left|The objective of this stage is to eliminate all viruses and collect all keys. In this stage, most of the keys and doors are locked behind cages. The top-middle portion of this stage has two exploders and a pop cannon nearby several colorful crates, and the pop cannon is directed towards a lock block that is amidst bubbles containing viruses and colorful crates. Another pop cannon is at the leftmost of the second row, which is aimed towards a shell and another lock block. The third lock block is nearby that pop cannon. Between some of the keys and doors are floatie viruses.
	Stage 897	align=left|The objective of this stage is to eliminate all viruses and collect all virus coins. In this stage, viruses, crates and exploders are scattered, as well as ice fans and Brick Blocks. Among the Brick Blocks, the Capsule Plus are hidden inside the ones in the first row, the fourth row and the eighth row, while the others contain hidden viruses.
	Stage 898	align=left|The objective of this stage is to eliminate all viruses and collect all virus coins. In the beginning of this stage and the next four revealed rows, there are rows of barrels containing exploders in the second and third bottom-most rows and viruses in the others, where they are between Brick Blocks containing hidden viruses. In the last nine revealed rows, there are four groups of viruses and barrels among Empty Blocks, crates and an exploder jar, where the barrels contain both normal viruses and floatie viruses. 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 13 lines are introduced.
	Stage 899	align=left|The objective of this stage is to collect all purple coins. In this stage, viruses are arranged in groups of two or three so that a capsule could be used to make a match, and most of those groups are half-frozen. At the bottom half, there are four groups of two half-frozen purple coins above bubble machines, while the top half has caged coins surrounded by bubble machines and barrels containing purple coins. The Brick Blocks do not contain anything. Purple coins are unlocked in the following sequence: The coins in the sixth and seventh rows, as well as the coins in the barrels, for a total of 16 coins. The 2 coins in the third row surrounded by barrels.
	Stage 900 (Hard)	align=left|The last stage of the first area, the objective of this stage is to eliminate all viruses and collect all virus coins. In this stage, the leftmost and rightmost columns consist of bubbles, in which a shell is located in the first row and every third revealed row on different sides. On the same row as each of the shells are rows of frozen viruses, with the sixth revealed row having fully-frozen viruses while the others have half-frozen viruses. Crates and colorful crates surround the frozen viruses except for the ones in the ninth revealed row. The last 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 10 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

Image	Stage	Best Doctors	Overview
	Stage 901	align=left|The objective of this stage is to eliminate all viruses. In this stage, The clouded viruses and floatie viruses are surrounded by crates, and between the crates are gaps where one of them has an exploder and two of them are jars: an exploder jar and a pop cannon jar. Additional viruses and crates are located in the ninth row.
	Stage 902	align=left|The objective of this stage is to eliminate all viruses and collect all keys. In this stage, dust viruses are arranged in a checkered pattern, where the gaps are filled with crates in the odd-numbered columns and colorful crates in the even-numbered rows. The keys and doors are located in the odd-numbered rows, and in between the keys are normal viruses.
	Stage 903	align=left|The objective of this stage is to eliminate all viruses and collect all virus coins. In this stage, the crates form a crosshair covering a virus coin, and on each of the quadrant around the crosshair are frozen viruses that cover the rest of the virus coins. Bubble machines are placed around the objects of this stage.
	Stage 904	align=left|The objective of this stage is to eliminate all viruses and collect all keys. In this stage, the barrels form a diamond that surrounds and is surrounded by fully-frozen viruses. That outer ring of viruses is below the doors and above the keys. Next to the keys and doors are more fully-frozen viruses. There are pop cannon jars in the top-left and top-right corners.
	Stage 905 (Hard)	align=left|The objective of this stage is to collect all coins from Coin Blocks and collect all virus coins. In this stage, each of the virus and floatie virus has a virus coin behind them, while Brick Blocks (all containing coins) are found in the second, middle and eighth columns. Filling the space between the viruses and Coin Blocks are colorful crates.
	Stage 906	align=left|The objective of this stage is to collect all virus coins and collect all purple coins. In this stage, frozen viruses and virus coins are placed throughout, where ice fans are also found. The three large virus coins are located in the three topmost rows.
	Stage 907	align=left|The objective of this stage is to eliminate all viruses and collect all coins from Coin Blocks. In this stage, the caged Brick Blocks (all containing coins) and caged exploder jars form two question marks, one in a normal position and one in an upside-down position. Within the curves of each question mark and between the symbols are floatie viruses and lock blocks.
	Stage 908	align=left|The objective of this stage is to eliminate all viruses and collect all keys. In this stage, there are purple coins that surround a few viruses, where one group is caged and the other is uncaged. Some of the coins and doors are frozen. The yellow lock block is blocked off by two doors, which corresponds to cages that include a shell in the vicinity of a pop cannon that aims two other shells. One of those shells targets the light-blue lock block, which unlocks a portion of purple coins and a red lock block. The red cages include an exploder that targets a shell that will lead to a pop cannon that targets a number of viruses. Purple coins are unlocked in the following sequence: The coins in the seventh to ninth rows, for a total of 15 coins. The coins in the second to fourth rows, for a total of 11 coins.
	Stage 909	align=left|The objective of this stage is to eliminate all viruses and collect all purple coins. In this stage, the purple coins (caged and uncaged) are placed in diagonal lines parallel to the cages. The lock blocks for those cages are located at the top-right corner, while the cages contain either crates, exploder jars or Empty Blocks. Half-frozen viruses are located in the top-left corner, the top-right corner and the uncaged exploder jars. Exploders are connected so that it reaches the only uncaged purple coin. Purple coins are unlocked in the following sequence: The middle coin in the first row. The second coin in the ninth row. The coins from the sixth column to the rightmost column, plus the second coin in the seventh row and the first coin in the ninth row, for a total of 10 coins. The rest of the coins, for a total of 9 coins.
	Stage 910 (Hard)	align=left|The objective of this stage is to collect all virus coins. In this stage, bubbles containing exploders are located next to bubble machines, where Brick Blocks are directly above and below them. The Brick Blocks contain hidden viruses. The filled flask in this stage will shoot out Brick Blocks containing hidden viruses.
	Stage 911	align=left|The objective of this stage is to eliminate all viruses and collect all coins from Coin Blocks. In this stage, two rows of dust viruses are in between three rows of Brick Blocks and two rows of Brick Blocks plus one containing Brick Blocks and viruses. The odd-numbered columns of Brick Blocks below the rows of dust and the even-numbered columns of Brick Blocks above the rows of dust are Coin Blocks, while the rest contain hidden viruses and hidden Capsule Plus (each starting from +5).
	Stage 912	align=left|The objective of this stage is to eliminate all viruses and collect all keys. At the beginning of this stage are mostly barrels containing viruses, with a few normal and half-frozen normal viruses in the mix. Of the Brick Blocks, only the ones in the eighth row contain hidden viruses. In the first revealed row, there are three keys and two barrels containing shell jars. Barrels containing viruses are scattered in the first eight revealed rows, while the final revealed row contain doors in between 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 9 lines are introduced.
	Stage 913	align=left|The objective of this stage is to eliminate all viruses and collect all keys. In this stage, clouded pop cannons are arranged in an "X", with barrels vertically in between them and Brick Blocks next to them. Of the Brick Blocks, the ones below the fifth row contain keys, while the ones above the fourth row contain doors and the one in the fourth row containing a pop cannon. The barrels in this stage contain either viruses, exploders, barriers or pop cannons, with only the middle barrel in the third row containing a door.
	Stage 914	align=left|The objective of this stage is to eliminate all viruses. In this stage, there are two groups of caged viruses between a line of ice fans with a pop cannon jar on one end and a shell jar on the other end. Near the pop cannon jar are two lock blocks, while near the shell jar is two caged exploder jars. The shells that are shot out from the shell jar will be inside bubbles. On the same row or column as the lock blocks are crates.
	Stage 915 (Hard)	align=left|The objective of this stage is to eliminate all viruses, collect all purple coins and collect all keys. In this stage, the shells and pop cannons are connected in a way that when the shell in eighth row is activated, the chain reaction will cause the frozen viruses and exploders to be cleared of ice, while the doors and the crate will still be half-frozen. The Brick Blocks contain hidden purple coins (caged and uncaged), except for the first two ones in both the third column and the seventh column, as well as the first coin in the topmost column. Purple coins are unlocked in the following sequence: The rightmost coin in the seventh row. The coins in the first column and the first, third and fourth coins in the third column, for a total of 7 coins. The 2 coins to the right of the door in the fifth row. The rest of the coins, for a total of 17 coins.
	Stage 916	align=left|The objective of this stage is to eliminate all viruses and collect all virus coins. In this stage, the viruses are scattered among colorful crates in diamond patterns, where bubbles containing exploders and half-frozen bubble machines are also found. The exploders that are shot out from the exploder jars will be inside bubbles.
	Stage 917	align=left|The objective of this stage is to eliminate all viruses. In this stage, the viruses, dust clouds and barrels are arranged in diagonal lines, where barriers are also found. The barrels contain viruses, floatie viruses, barriers or Capsule Plus, while barriers are found in a few of the dust clouds.
	Stage 918	align=left|The objective of this stage is to eliminate all viruses and collect all keys. In this stage, there are two lines of caged exploders that separate two groups of Brick Blocks, where one group has two normal viruses. The top side has fully-frozen doors and the bottom side has fully-frozen keys. Each side also has a lock block and both a key and a door. Most of the Brick Blocks contain hidden viruses, while three of the four Brick Blocks between each pair of key and door with them have hidden Capsule Plus.
	Stage 919	align=left|The objective of this stage is to collect all virus coins. In this stage, the Brick Blocks have virus coins behind them. The Brick Blocks all contain hidden floatie viruses. In addition to Brick Blocks, there are three pop cannon jars and one shell jar, as well as two pop cannons. The pop cannons that are shot out from the pop cannon jars will be hidden inside Brick Blocks.
	Stage 920 (Hard)	align=left|In the final stage of this world, the objective is to eliminate all viruses, destroy all colorful crates and collect all keys. In this stage, the keys are in the odd-numbered columns. At the beginning of this stage, there are three rows of viruses above the keys. In the two topmost rows (before the stage scrolls) and the next four revealed rows, there are six groups of four viruses in a row segmented by crates, where each group has two half-frozen viruses. The next six revealed rows contain alternating rows of viruses and colorful crates. In the next five revealed rows, there are two rows of bubbles with barriers inside sandwiched between three rows of viruses where the odd-numbered position of viruses are half-frozen. Doors are located in the final revealed row, where Empty Blocks are in between. 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 16 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.

Challenge stages

Image	Stage	Best Doctors	Overview
	Stage 23A	align=left|Within a 60 second time limit, players need to eliminate all viruses and collect all coins from Coin Blocks. In this stage, Brick Blocks occupy nine rows except for two spots in the ninth row. Except for a few Brick Blocks, they contain either hidden pink viruses or are Coin Blocks. Completing this stage awards the player 500 coins.
	Stage 23B	align=left|Within a 70 second time limit, players need to eliminate all viruses and collect all purple coins. In this stage, the pink viruses are arranged in a checkered pattern where they are either inside bubbles or are caged. Filling in the gaps of pink viruses are purple coins (caged and uncaged), where some of them are caged. The cages form a wall of a path where a bubble with a pink lock block is at the end. Purple coins are unlocked in the following sequence: In addition to the first row of coins, the path of coins starting from the rightmost portion to the leftmost portion of the eighth row, leading to the leftmost portion of the second row to the rightmost portion of the second row, leading to the rightmost portion of the fourth row to the third object in the fourth row, leading to the third object in the sixth row to the rightmost portion of the sixth row, for a total of 22 coins. The rightmost coin in the fifth row. The rightmost coin in the seventh row. The rest of the coins between the caged viruses, of which there are 14 of them. Completing this stage awards the player 500 coins.
	Stage 23C	align=left|Within a 70 second time limit, players need to eliminate all viruses, destroy all barriers and collect all keys. In this stage, cages are found in the topmost row and among the doors in an upside-down "V" pattern. Directly below the doors are caged floatie viruses and half-frozen viruses. The lock block, which is fully-frozen, is located in the middle of the topmost row, where two shells and caged barriers are located. In the same column as the shells, there are pop cannons, one caged and one uncaged. Crates are also found below the topmost row. Completing this stage awards the player 1000 coins and a Staff Ticket.

Special Stage

Image	Stage	Best Doctors	Overview
	Special Stage	align=left|The objective of this stage is to eliminate all viruses, destroy all barriers and collect all purple coins. In this stage, the barriers, frozen purple coins (caged and uncaged), jars, ice fans and bubble machines form an "X". The jars are a shell jar, an exploder jar and a pop cannon jar. Three floatie viruses are located on the sides and the top of the stage. Purple coins are unlocked in the following sequence: The second coin in the fourth row and the coins in the fifth row, for a total of three coins. The first coin in the third and fourth rows, the coin in the sixth row and the second coin in the seventh row, for a total of four coins. The second coin in the second and third rows, as well as the first coin in the seventh and eighth rows, for a total of four coins. The first coin in the second and eighth rows, as well as the coins in the first and ninth row, for a total of four coins. Completing this stage awards the player 1000 coins and Dr. Bowser.

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?"
  • 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!"

References

Category:Castles Category:Dr. Mario World Worlds