Editing Missable content

[[File:HiddenChest01.png|frame|right|A missable [[Hidden Treasure|hidden treasure]] in ''[[Super Mario RPG: Legend of the Seven Stars]]'' that can only be reached at the beginning of the game.]]
'''Missable content''' refers to items, equipment or other details that can be obtained or experienced at one point in the game, but can be missed permanently if the player does not do so before reaching a certain point in the game, or before its location [[Unrevisitable area|cannot be revisited]].

In ''Super Mario'' role-playing games, rare items and accessories are often more difficult to obtain past a certain point, and in some cases, missable content is rare to begin with (such as being rare drops from bosses), but not all rare items are missable.

[[Virtual Console]] versions of games that have features from accessories supported in their original consoles (Controller Pak for the [[Nintendo 64]]) may not be accessed at all.
==''Super Mario'' series==
===''Super Mario Bros.: The Lost Levels''===
In the ''[[Super Mario All-Stars]]'' version of ''[[Super Mario Bros.: The Lost Levels]]'', using any Warp Zone, even a backwards Warp Zone, permanently bars the player from ever accessing World 9 for that current save file. Similarly, if the player has completed the first eight worlds and unlocked World 9 but used Warp Zones while completing Worlds A-D, they will retroactively be barred from completing World 9 again for that same save file.

===''[[Super Mario Bros. Deluxe]]''===
In earlier copies of the game, only one of the three Challenge-related pictures in the Album (for collecting all [[Red Coin]]s, collecting all [[Yoshi Egg]]s, and reaching all target scores) could be obtained.<ref>{{cite|url=www.youtube.com/watch?v=u0tiC6Xf1-0|author=KRocketneo's Retro Gaming|date=December 3, 2014|publisher=YouTube|accessdate=May 26, 2024|language=en}}</ref>

===''[[New Super Mario Bros. Wii]]''===
If the player loses eight lives in a row on a course from one of the first eight worlds before completing it, a [[Super Guide Block]] appears when the player re-enters that course. If the player saves the game after seeing one, it permanently prevents the player from ever having shiny stars on their save file.

===''[[Super Mario 3D Land]]''===
Similarly to ''New Super Mario Bros. Wii'', if the player loses five lives when attempting to clear a course from one of the first eight worlds, an [[Assist Block]] will appear on re-entry, permanently preventing the player from ever having shiny stars on their save file. This only applies before the course is cleared.

===''[[Super Mario Odyssey]]''===
[[File:Missable Large Coin Pile.jpg|thumb|250px|Luncheon’s missable large coin pile]]
There are three [[Checkpoint Flag]]s that completely disappear once the player has reached a certain point (regardless of whether they have been activated or not):
#Waterfall Basin ([[Cascade Kingdom]]): When the player arrives at this kingdom from the [[Cap Kingdom]] for the first time, there is a Checkpoint Flag in front of the player at the beginning. This flag disappears after the player has repaired the [[Odyssey]] and landed in the [[Sand Kingdom]], since the flag at the Odyssey practically replaces its function.
#City Outskirts ([[Metro Kingdom]]): During the [[The Scourge on the Skyscraper|first mission]] when [[Mechawiggler]] takes over the New Donk City Hall, the player starts by taking a [[spark pylon]] into the city. Just as the player lands, there is a Checkpoint Flag in front of them (located southeast on the map). After Mechawiggler is defeated, the Checkpoint Flag is gone.
#Construction Access (Metro Kingdom): Similarly to the above, this Checkpoint Flag is placed on ground level just before the stairs that lead up the building next to the City Hall, where several [[Sherm]]s are located. It also disappears after Mechawiggler is defeated.
In the [[Luncheon Kingdom]], there is a large [[coin pile]] on the left of [[Peronza Plaza]] behind some giant vegetables. After obtaining the kingdom's first [[Multi Moon]], this coin pile disappears, even if it was not collected.

From October 27, 2018 until November 7, 2018, for the first anniversary of ''Super Mario Odyssey'', 39 pixel Luigis and Captain Toads were added in the ground around the concert of New Donk City in the mission [[A Traditional Festival!]]. Mario could explore the area and [[Ground Pound]] their spots to reveal them, each pixel character awarding him 200 [[coin]]s at first discovery.

===''[[Super Mario Bros. Wonder]]''===
Because the short introductory level becomes inaccessible after Bowser becomes [[Castle Bowser]], a total of 18 coins can no longer be collected if the player chooses to avoid them.

==''[[Super Mario RPG: Legend of the Seven Stars]]''==
In the original [[Super Nintendo Entertainment System|SNES]] version, the player has only one attempt to collect the [[Frog Coin]] inside a [[Hidden Treasure|hidden treasure]] when [[Mario]] and [[Toad]] enter the [[Peach's Castle|Mushroom Castle]]'s foyer for the first time, by jumping on Toad's head and climbing up to the hidden treasure at the end of the room. If the hidden treasure was not obtained, leaving through the entrance before entering the throne room and then returning will reset Toad's position and allow the player to try again if they fail to reach the alcove. In the [[Super Mario RPG (Nintendo Switch)|remake]], the player can collect the Hidden Treasure in the Mushroom Kingdom hallway at any time.

The player has two opportunities to collect the items in the vault of the Mushroom Castle: 10 coins, a flower, and a mushroom. The two times these can be collected are right after meeting the [[Chancellor]], and during the [[Shymore|Shyster]] invasion. Even if these items were collected the first time, they reappear in the second time. Once [[Claymorton|Mack]] has been defeated, the vault is sealed, preventing these items from being obtained.

In the SNES version, if the player fails to evade [[Booster]] and his [[Snifster|Snifit]]s three times in the curtain minigame in [[Booster Tower]], they will be forced to fight them and will not be able to obtain the [[Booster's Charm|Amulet]] accessory. In the remake, Booster's Charm is a guaranteed item drop for winning the Engine 023 Booster battle if the curtain minigame was failed, so this item is no longer missable.

If the player fails to evade [[Dodo]]'s pecking three times while Mario poses as a golden statue in [[Nimbus Land|Nimbus Castle]], they are forced to fight him and miss their chance to obtain the [[Feather (accessory)|Feather]] accessory. In the remake, they can still obtain it as the Toad shopkeeper in Moleville sells one. In that case, the player can collect both if they win the minigame.

In the remake, if the player misses an opportunity to analyze an enemy with [[Thought Peek]] for their [[Super Mario RPG (Nintendo Switch) bestiary|Monster List]], they can still obtain their entry by purchasing it from the Monster List Agent in Booster Pass for three Frog Coins each. After clearing the game, enemies the player missed that the NPC was unable to get a write-up for beforehand (such as [[Bill Blaster|Blaster]]) are made available for the player.

Also in the remake, unique weapons, items, or accessories can no longer be lost entirely as they cannot be sold whatsoever.

==''[[Donkey Kong 64]]''==
The five [[Banana Medal]]s that appear in [[Hideout Helm]] do not respawn if the player leaves the area without collecting them, making 101% [[completion]] impossible. 

==''Paper Mario'' series==
===''[[Paper Mario]]''===
During [[Princess Peach]]'s segments, there are a few chances to use the [[Mysterious Treasure Chest]] to deposit items and Badges, the last opportunity being the segment just after Chapter 6. Once the segment after Chapter 6 is done, all items and badges she has collected (but not deposited into the chest) become unobtainable.

The player can miss out on an opportunity to fight the [[Anti Guy|Anti Guys Unit]] in Bowser's Castle should they correctly answer five questions from the second [[Guard Door]]. The fight however does not contain any exclusive items and its purpose is for earning extra [[Star Point]]s.

===''[[Paper Mario: The Thousand-Year Door]]''===
[[File:PMTTYD unrevisitable room Gloomtail.png|thumb|left|The room beyond [[Gloomtail]]'s chamber in east [[Palace of Shadow]], which is unrevisitable once the [[Palace of Shadow Tower]] is cleared.]]

Upon opening the chest containing a swarm of two hundred [[Boo]]s in the basement floor of the [[Creepy Steeple]], the player can be rewarded with an [[Ultra Mushroom]] if they answer "200" to the Boo asking how many Boos were released. Otherwise, they are rewarded a single [[Coin]].

[[Lumpy]] asks for donations to help him dig for gold and the player can donate up to 300 coins to him. He leaves Rogueport after Chapter 4 is completed. If Mario has not donated any coins to him before completing Chapter 4, the coins he would receive after Lumpy returns once Chapter 6 is completed are lost forever.

When the player faces and defeats [[Gloomtail]] in the [[Palace of Shadow]], the player has an opportunity to blow up the eastern wall of the chamber with [[Bobbery]] to reveal a passageway to a hidden room with two [[? Block]]s containing an Ultra Shroom and a [[Jammin' Jelly]] (three ? Blocks containing a Gradual Syrup, a Shooting Star, and a Mystery in the remake). If the player does not obtain these items before completing the puzzle in the [[Palace of Shadow Tower]], they cannot return to Gloomtail's chamber again to collect them as the hidden passage is revealed, making the room unreachable.

If the player does not eat either slice of [[cake]] in the [[Glitz Pit]] after finishing a battle, [[Shellshock]] eats it instead (while the first one recovers both Mario and his ally's health, the [[Poisoned Cake|second one]] is poisonous and will paralyze Mario's partner).

Incidentally, permanently-missed enemy tattles will be transferred to the garbage can in [[Professor Frankly]]'s house in [[Rogueport]], allowing the player to complete the [[Tattle Log]] in any event.

====Exclusive to the [[Nintendo GameCube]] version====
Extra [[Flower Finder]] badges can be obtained as rare drops from [[X-Naut PhD]]s. However, once Mario and his partner teleport back to [[Rogueport Underground]] at the end of Chapter 7, they will not encounter any more X-Naut PhDs. This makes extra Flower Finder badges impossible to get after this point, even once the player has regained the ability to return to the moon in the postgame. In the remake however, the badge can also be dropped from [[Dark Paratroopa]]s as well, making it accessible even after completing Chapter 7.

====Exclusive to the [[Nintendo Switch]] version====
As the player can no longer drop ranks in the Glitz Pit, they will not be able to collect any items in the lockers from the minor or major league locker rooms once they have access to the Champion's room. The player has a second chance to collect these items if they are reinstated in the Glitz Pit after Chapter 3, however. 

[[File:PMTTYDHiddenBlockPiratesGrottoSMR.jpg|thumb|right|The hidden block in Pirate's Grotto in the Nintendo Switch remake]]
A hidden block containing a Super Mushroom in the Pirate's Grotto is found on the ground, in one of the stone platforms in the area with the Black Skull. After the events of Chapter 5, the Super Mushroom cannot be obtained as the bridge, stone platforms and hidden block disappear.

In the (originally empty) third corridor leading to Gloomtail's room a ? Block containing an [[Ice Storm]] appears, making it missable as well once the palace corridors open up.

===''[[Super Paper Mario]]''===
In Chapter 7-4, there is an area where a Nimbi locked himself in the chest. Before the chapter is completed, the player can open the chest and receive an [[Ultra Shroom Shake]] in return. Once the Chapter is completed, the player will be unable to open the chest if they come to the place again.

===''[[Paper Mario: Sticker Star]]''===
[[File:WigglerPuff.jpeg|thumb|250px|An entry from Wiggler's Diary.]]
After subduing one of [[Wiggler#Paper Mario: Sticker Star|Wiggler]]'s [[Wiggler Segment|segments]] during the storyline of [[World 3 (Paper Mario: Sticker Star)|World 3]], the player has one chance to bring each one to a specific location to create an entry for the optional [[Wiggler's Diary]] before being brought to [[Wiggler's Tree House]]. Once Wiggler's body is reunited, the player will not be able to obtain any more diary entries they may have skipped. In [[Rustle Burrow]], the stickers the player originally had before their first visit are lost after the first visit if the player did not pick up any sticker that fell out.

===''[[Paper Mario: The Origami King]]''===
At a [[Dress-Up Photo Studio]] in [[Shogun Studios]], Mario can take pictures in a photo booth with [[Olivia]] and [[Bob-omb (Paper Mario: The Origami King)|Bob-omb]] wearing different outfits. This is possible only if Mario returns to Shogun Studios immediately after arriving at [[Sweetpaper Valley]]. After Olivia gets crushed by a boulder, any pictures taken from that point will display only Mario and Bob-omb. After Bob-omb's sacrifice, any pictures taken from that point will no longer display him with different outfits and instead have him as a spirit with his standard appearance.

Prior to version 1.0.1, it was possible to miss a Toad turned into a surfboard in Shroom City should Mario leave the area after shutting off the water without rescuing the Toad, which in turn would also prevent Mario from getting a +10 HP [[MAX UP Heart]] that the Toad rewards him with.

Inside the foyer of [[Bowser's Castle]], where [[Bowser's Minions]] are fighting the [[Folded Soldiers]], Mario can optionally fight the Folded Soldiers and earn 1,000-coin sacks from the minions only after defeating the Folded Soldiers in actual battles without placing any unfolded minions in his range of attack. However, this is only possible before [[Olivia]] is snatched by [[Handaconda]], as the [[Scissors (boss)|Scissors]] cuts up the minions later on.

In [[Hotfoot Crater]], there are two coins and a 1,000-coin sack on a platform south of the [[airship]] remains, and a breakable [[crate]] sitting on the remains containing another 1,000-coin sack inside. If the player exits the remains to the eastern platform without collecting any of them, they will become inaccessible, as the [[Paper Macho Goomba]]s block up the airship remains.

In the final stretch of [[Origami Castle]], Mario can hammer a wobbling [[King Olly]] statue and cause it to drop onto a flippable bridge to instantly defeat the last horde of Folded Soldiers. If he does not do this early, he goes straight into battling them.

In this game, the player can get special achievements by completing the game without using any battle accessories or getting a [[Game Over]], which adds banners to the ending image and more icons to the file select screen (a heart for no Game Overs, and a Mario glove for no battle accessories). However, if they get a Game Over or equip any battle accessories before beating the final boss, these achievements are lost forever, since Mario no longer meets the requirements for them. Accessories that only have effects in the overworld do not affect this.<ref>https://www.reddit.com/gallery/hygn2x</ref>{{dead link}}

==''Luigi's Mansion'' series==
===''[[Luigi's Mansion]]''===
The player has only one chance to capture [[Speedy Spirit]]s in dark rooms: if the player fails to catch one, it will not appear again, even during the [[blackout]]. The player however has enough opportunities to capture [[Gold Mouse|Gold Mice]] as long as a room is dark: should the player fail to catch one, they only need to exit and re-enter the room, and if there is a piece of [[Cheese|cheese]], to re-scan it with the [[Game Boy Horror]].

When sucking up [[portrait ghost]]s, the player must try to capture them in one attempt to collect all the [[pearl]]s they drop. If the suction breaks in the middle of an attempt, the player may not be able to collect medium-sized pearls or a large-sized pearl.

In the [[Boneyard]] is a lone plant in the garden that can be watered. If the player does so before fighting [[Bogmire]], after defeating him, and after defeating [[Boolossus]], it will grow and reward the player with ample amounts of treasure. If the player fails to water it before defeating either boss, it will wither and die.

===''[[Luigi's Mansion 3]]''===
In the Garage, a few [[Gold Bar]]s can be obtained from a hole in the wall opposite the door. However, after [[Professor Elvin Gadd|Professor E. Gadd]] sets up his lab, it blocks the Gold Bars.

In the [[Barber Shop]], [[Gooigi]] can spin the chairs in front of the mirrors to reveal two [[Golden Goob|Golden Goobs]]. However, this must be done before defeating [[Kruller]], or else the Golden Goobs will not appear.

If Luigi captures [[Morty]] immediately after obtaining his [[elevator button]] (while Morty is still editing), he will not be able to view the movie Morty was making.

Later in the game, Luigi revisits the Boilerworks to rescue a Toad that was sent by E. Gadd to retrieve a part for the [[Poltergust G-00]]. In this part of the game, Toad can be fired at walls and objects to knock them down and reveal money, as well as open a shortcut back to the start of the area. If Luigi does not do this at this point, he will be unable to do so later, since no alternative projectiles are provided for knocking down most of these walls and objects on repeat visits.

==''Mario & Luigi'' series==
===''[[Mario & Luigi: Superstar Saga]]'' / ''[[Mario & Luigi: Superstar Saga + Bowser's Minions]]''===
The player only has one chance to collect all the items from ? Blocks in [[Peach's Castle]], both visits of the [[Koopa Cruiser]], [[Chucklehuck Woods]] Underground (the cavern area just after defeating [[Chuckolator]]), [[Guffawha Ruins]], and the [[S.S. Chuckola]], as these areas become inaccessible after leaving them.

The player has until the second destruction of [[Beanbean Castle Town]] to collect all ten [[Beanstone]]s scattered about the western and eastern halves of the town to obtain the '''Bros. Rock''' accessory, as well as collecting all five [[Beanlet]]s to earn a [[Golden Mushroom (crownless)|Golden Mushroom]]. The southeastern house on the western side contains a regular ? Block and three [[Hidden Block]]s containing Hoo Beans, and the northern doubled-entrance house on the eastern side contains four ? Blocks. After the second invasion, the player will be unable to unearth Beanstones and locate the Beanlets, and the houses containing the ? Blocks will be closed for the remainder of the game. 

Several bosses and enemies drop rare equipment that can only be gotten by equipping the [[Game Boy Horror SP]] simply by defeating the boss or enemy, or by using the [[Advanced Command|Advanced]] [[Swing Bros.]] to steal it from them without equipping the former:
*[[Mecha-Chomp]]: Its malfunctioning version has a 16.13% chance of dropping the '''School Emblem''' accessory when using Advanced Swing Bros. in the American, European, and Australian versions. If Mario or Luigi's Attack Power gets high enough, this badge becomes impossible to obtain.
*[[Trunkle]]: Its body has a 39.22% chance of dropping the '''Lucky Bros.''' accessory when using Advanced Swing Bros. in the American, European, and Australian versions.
*[[Hermie III]]: Has a 39.22% chance of dropping the '''Lucky Ribbon''' accessory when using Advanced Swing Bros. in the American, European, and Australian versions. In the Japanese version, [[Birdo]] drops it instead.
*[[Piranha Bean]]: Always drops the '''Piranha Swing''' accessory upon defeat, but its other item, '''Piranha Suit''', is mutually exclusive from it in the American, European, and Australian versions. The Piranha Suit can only be obtained when Luigi is equipped with the Game Boy Horror SP; therefore, the player needs to collect enough Hoo Beans to make all seven blends from [[Starbeans Cafe]] up to that point to obtain the Game Boy Horror SP before fighting Piranha Bean. 
**In the Japanese version, [[Ludwig]] always drops the Piranha Suit.
*[[Popple]]: In the Japanese version, he has a 32.26% chance of dropping a Golden Mushroom when fought in Chucklehuck Woods; in the American, European, and Australian versions, he has a 61.29% chance of also dropping a Golden Mushroom when fought in Teehee Valley. Using Advanced Swing Bros. or the Game Boy Horror SP guarantees the drop.
*[[Jojora's Friend]]: Has a 39.22% chance of dropping the '''Sledge Heart''' accessory when using Advanced Swing Bros. in the American, European, and Australian versions. Using the Game Boy Horror SP guarantees the drop.
*[[Morton]]: Has a 39.22% chance of dropping the '''Bowser Fist''' accessory when using Advanced Swing Bros. in the American, European, and Australian versions. In the Japanese version, [[Lemmy]] drops it instead. Using the Game Boy Horror SP guarantees the drop.
*[[Roy]]: Has a 39.22% chance of dropping the '''Bowser Fang''' accessory when using Advanced Swing Bros. in the American, European, and Australian versions. Using the Game Boy Horror SP will guarantee the drop.
*[[Fawful]] ([[Bowser's Castle]]): Normally dropa a rare [[Golden Mushroom]]; one of the five normally accessible in-game. However, with the Game Boy Horror SP equipped, he will instead drop a much more common [[1-Up Super]].
The remake ''[[Mario & Luigi: Superstar Saga + Bowser's Minions]]'' retains the missable content from the original version. While some item and badge drops have changed, bosses that carry any items now only have one and are guaranteed to drop it. As a result of this, only two of the bosses in this game drop potentially missable equipment:
*Popple: The player can miss their chance to obtain '''Popple Badge A''' if Popple flees after the Mario Bros. defeat [[Rookie]] first in battle at [[Woohoo Hooniversity]]. In Popple's fourth battle, in [[Teehee Valley]], the player can miss their chance to obtain '''Popple Badge AA''' if he flees when [[Birdo]] is defeated first. 
*[[Jojora]]: The player can miss the '''Revenge Jeans''' if Jojora flees when [[Jojora's friends|her friend]] is defeated first.
In Guffawha Ruins, the '''Mari-Lui Badge''' can be found at the dead-end east of the fourth area, in the ? Block on the right. [[Elite Chuck Guy]]s and [[Limbo Bro]]s now carry items that can only be obtained if Luigi defeats them while equipped with the Game Boy Horror SP: the '''Elite Chuck Guy Badge''' from Elite Chuck Guys and the '''Defense Pants''' from Limbo Bros. Since the amount of beans required to make all seven blends from Starbeans Cafe in this game has been halved from the original version, the player can obtain the Game Boy Horror SP much earlier and have Luigi equipped with it at that point. Because the interior of the Guffawha Ruins becomes inaccessible after [[Bowletta]] kidnaps [[Princess Peach|Peach]], the player has only one chance to obtain these three items.

===''[[Mario & Luigi: Partners in Time]]''===
The player only has one chance to collect all the items from ? Blocks from the Koopa Cruiser when playing as [[Baby Mario]] and [[Baby Luigi]], and all the [[Bean]]s and ? Blocks from the [[Shroob Mother Ship]].

Several bosses have a 15% chance of dropping rare equipment, even though there are duplicates of said items found elsewhere.
*'''Hit-POW Badge:''' Drops from [[Mrs. Thwomp]] in her small form in the North American version, or in her regular form in the European and Japanese versions. Its duplicate can be found in the [[Koopaseum]].
*'''Dynamic Badge:''' Drops from Bowser, and its duplicate can also be found in [[Thwomp Caverns]].
*'''Item-Fan Badge:''' Drops from [[Baby Bowser]]. Its duplicate can be found in [[Peach's Castle]].
*'''Dynamic Badge A:''' Drops from [[Commander Shroob]], and its duplicate can be found in [[Toad Town]].
*'''Hit-Free Badge:''' Drops from [[Elder Shrooboid]] in its giant form, and its duplicate can also be found in [[Star Shrine]].

===''[[Mario & Luigi: Bowser's Inside Story]]'' / ''[[Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey]]''===
The player only has one chance to collect all the items from ? Blocks in Peach's Castle at the beginning of the game.

The player can miss out on an opportunity to do quizzes with the three [[Nutsoglobin]]s in the [[Flab Zone]] if Mario and Luigi answer the questions incorrectly. The quizzes are entirely optional, and their purpose is for earning [[coin]]s.

Like the previous games, several bosses and "support enemies" can drop rare equipment, even if there are duplicates of said items found elsewhere or dropped by enemies with lower drop rates.
*'''Fighter Wear:''' Has a 10% chance of being dropped by [[Leaf Guy]]s in the battle against [[Wiggler]] in [[Dimble Wood]]. Its duplicate can be found in [[Pump Works]].
*'''Siphon Boots:''' Has a 40% chance of being dropped by [[Wisdurm]]. Its duplicate can also be purchased in [[Toad Town]] for 1000 coins.
*'''Grown-up Wear:''' Has a 10% chance of being dropped by both [[Bowser Memory M]] and [[Bowser Memory L]].
*'''Shroob Boots:''' Has a 30% chance of being dropped by each of the [[Shroob]]s in Bowser's Castle.
*'''Special Gloves:''' Has a 50% chance of being dropped by [[Junker]].
*'''Power Fangs X:''' Has a 10% chance of being dropped by [[Blizzard Midbus]], but it can also be dropped by [[Dark Mechawful]]s.
*'''D-Star Wear:''' Has a 20% chance of being dropped by the [[Dark Star]]. Its duplicate can be found in Peach's Castle on the first floor.
*'''Lucky Charm:''' Has a 10% chance of being dropped by [[Dark Fawful]], but it can also be dropped by [[Dark Fawful Guy]]s.
Much like the first remake, ''[[Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey]]'' gives all items dropped by bosses 100% drop rates. Additionally, there are no bosses that flee from battle, so all boss drops are guaranteed to be obtained, including the Shroob Boots, meaning that if the player decides to fight the Shroobs, they will get three pairs. Nevertheless, the player can still miss their chance to obtain extra experience points from several support enemies of bosses if they flee from battle when they're the last one remaining:
*[[Sea Pipe Statue|Stone Blooper]]: Drops an additional 30 EXP if the Stone Blooper is defeated first in the battle with the [[Sea Pipe Statue]].
*[[Leaf Guy]]: Drops an additional 20 EXP per every Leaf Guy defeated during the battle with [[Wiggler]] in [[Dimble Wood]].
*[[Snawful]]: Drops an additional 220 EXP per every Snawful defeated during the battle with [[Blizzard Midbus]].
*[[Vacuum Helmet]]: Drops an additional 220 EXP if the Vacuum Helmet is defeated first in the battle with [[Dark Fawful]].

===''[[Mario & Luigi: Dream Team]]''===
While almost all bosses in the game always drop a rare piece of equipment upon defeat unlike the previous three games, [[Mammoshka]] is the only one to drop a potentially missable accessory, the '''1-Up Gloves''', with a 50% chance of being dropped.

===''[[Mario & Luigi: Paper Jam]]''===
All missable items in this game are beans from drill spots and items from [[? Block]]s in Bowser's Castle, as this area cannot be revisited.  These items are the '''Spin Hammer''', the '''Bros. Wear''', and the '''SPEED Mush Jams'''.

If [[King Bob-omb]] explodes during his battle and any brother survives the explosion, no experience and coins are given and the '''Ironclad Wear''' is not obtained.

===''[[Mario & Luigi: Brothership]]''===
Some side quests can be completed only before a certain point in the game's story, while some have to be completed in a limited time.<ref>''"Some side quests have to be completed in a limited time. Also, some side quests become unavailable after a certain point in the story. Completionists, beware."'' ‐ Side Quests tip, ''Mario & Luigi: Brothership''</ref> Expiring side quests are indicated with a red-colored thought bubble icon. The remaining majority of the game's side quests will become unavailable after revisiting [[Fortress Zokket]], with the last few late-game ones eventually becoming unavailable after reaching the game's epilogue.

In [[Raynforst Island]], all collectibles in the area located to the left of the flower gate are missable once all three Toads are reunited in the upper area, as [[Luigi Logic]] is unusable on the handle to access the rest of the area afterward.

In the [[Lushgreen Sea Great Lighthouse]] and [[Color-Full Sea Great Lighthouse]], all collectibles inside the passageways are missable after the player inserts both plugs into the sockets in front of the big gate. Even if one of the plugs is inserted, it can still be removed from a socket and be placed elsewhere, but both cannot be removed once they are inserted. The missable objects include:

;Lushgreen Sea Great Lighthouse
*Two ? Blocks
*Two hidden blocks

;Color-Full Sea Great Lighthouse
*Four ? Blocks
*One hidden block

In the second visit of [[Heatfreeze Island]], the player has the opportunity to fight against a horde of Bowser's minions in the cave area. Once the island is relinked, this battle cannot be fought.

The player can fight hordes of Zok Troopers in [[Shrimpee Islet]] and [[Mykroh Islet]] after getting the Technikki or Adaphne Engine. Once Wilma's family's bond is collected, they both cannot be fought as the IDLE members end up stranded on both islands with different Glohm enemies instead.

All collectibles in Fortress Zokket and the illusory [[Mushroom Kingdom]] in the [[Soli-Tree]] are missable, as these areas cannot be accessed again.

Any rare gear drops from regular enemies are missable after defeating [[Zokket]], as the [[Glohm]] versions of enemies that replace them drop DX versions of these items instead. The following is a list of missable rare gear:

*Knockout Hammer from [[Drillby]]
*Accel Boots from [[Snaptor]]
*Blocky Hammer Wear from [[Shower Fish]]
*En Guard Boots from [[Curlup]]
*Liberation Wear from [[Palooka]]
*Gamble Hammer from [[Millton]]

==''[[Mario + Rabbids Sparks of Hope]]''==
Any coins and stone spirals not collected at Peach's Castle cannot be collected after beginning the battles on the [[Darkmess Manta]].

==See also==
*[[Unrevisitable area]]
*[[Unwinnable state]]

==References==
<references/>

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