In Mario games, an unrevisitable area is any location which is inaccessible after a certain point. Unrevisitable areas are primarily found in Mario RPGs where the player is automatically taken to such places during the storyline and may contain items or accessories that can be missed. Some platformer games that allow the player to roam on world maps may contain stages that can only be accessed once on the world map, or near the beginning of the game.
Due to the nature of linear games such as Super Mario Bros., they are not listed on this page.
Super Mario series
The four switch palace levels, Yellow Switch Palace, Green Switch Palace, Red Switch Palace and Blue Switch Palace, cannot be accessed after Mario steps on the respective switches. In the Japanese version of the game, castles and fortresses cannot be revisited once Mario has destroyed them.
The Start stage cannot be accessed again through standard means after completing it.
Stages containing bosses cannot be accessed again after defeating the respective bosses in each zone unless the player runs out of lives which results in losing the Golden Coins they have collected.
The short side-scrolling level at the beginning of the game cannot be replayed.
Yoshi's Island series
The tutorial level Welcome To Yoshi's Island cannot be revisited again after completing the level or exiting it from the menu. In Yoshi's Island: Super Mario Advance 3, however, this level appears again at the end of the secret stage Endless World of Yoshis.
Similar to Welcome to Yoshi's Island in Super Mario World 2: Yoshi's Island, the tutorial level called Welcome Back to Yoshi's Island! cannot be revisited again after completing the level.
The vault in Mushroom Kingdom castle can only be visited twice. The first time right after meeting the Chancellor, and the second time during the Shyster invasion. After defeating Mack, this room cannot be accessed again.
Paper Mario series
After the eruption of Mt. Lavalava at the end of Chapter 5, the bottom of the room just before Lava Piranha becomes unsuitable for Mario to walk on, preventing the chambers beyond from being accessed.
The secret passageway in Peach's room cannot be revisited when Mario reaches Peach's Castle.
The blue minor and major league rooms in the Glitz Pit Mario and his partner are locked in, as well as the room that connects the two and the restrooms that take Mario back out to the red major league room, cannot be revisited after escaping from the toilet in the blue major league room during Chapter 3.
In the Palace of Shadow lies a hidden room connected to Gloomtail's chamber by a passageway that can be accessed by blowing up the eastern wall with Bobbery, which contains an Ultra Shroom and a Jammin' Jelly. Once Mario places the Star Key in the pedestal in the Riddle Tower, the floors of the four hallways leading to Gloomtail's chamber give way, preventing these rooms from being accessed again.
None of Bowser's platforming stages can be revisited once they are cleared.
The Fort Francis dungeon room that contains a single Chain Chomp cannot be revisited once Thoreau is used to carry the block on the button switch that reveals a warp pipe, which requires the heroes to go back up to the basement room.
During the events of the game, Sammer's Kingdom is destroyed by The Void, leaving a blank area called the World of Nothing. After the game is completed, Sammer's Kingdom is restored and World of Nothing cannot be accessed again.
The airship near the entrance to the Crimson Tower cannot be revisited after Mario hits the airship's self-destruct switch with his hammer. The majority of Black Bowser's Castle also cannot be revisited after Mario destroys the black paint factory.
The dungeon of Peach's Castle cannot be revisited after escaping from it at the beginning of the game. The entrance hallway is revisited later in the game, but is no longer accessible after the castle transforms into Origami Castle.
The area where the Earth Vellumental is fought cannot be revisited after Olivia raises the dirt platform they are sitting on.
The stages of the Big Sho' Theater cannot be revisited after clearing each of their challenges, with the exception of the first one. However, Mario can watch the Shy Guy ballet again if he talks to a Shy Guy in the lobby.
None of the underwater sections in the Great Sea can be revisited after collecting their respective treasures and clearing the purple streamer.
The trial temples in Diamond Island cannot be entered again after completing their trials.
The airship shooting section cannot be replayed after completing it.
Mario & Luigi series
The Koopa Cruiser can only be visited twice: the first visit is during the flight to the Beanbean Kingdom, which becomes inaccessible upon battling Fawful; the second visit is after Joke's End, where Luigi navigates through the repaired ship in reverse order before collecting the Beanstar.
The Beanbean Borderlands on the Mushroom Kingdom side of Stardust Fields cannot be revisited after crossing the border to the Beanbean Kingdom.
The Training Area where the Starshade Bros. teach the Mario Bros. their techniques after learning the High Jump and Spin Jump cannot be revisited after completing the tutorial. In the remake, this area can be briefly revisited by practicing the High Jump and Spin Jump moves in the guide.
The gates to the Guffawha Ruins are sealed after Bowletta kidnaps Peach once, preventing the interior of the area from being accessed again, especially after the Mario Bros. obtain the Ultra Hammers from the Hammerhead Bros. in their cave. The ledge with the Yellow Pipe in Little Fungitown then cannot be reached.
The caverns where the Jellyfish Sisters teach the Mario Bros. their techniques cannot be accessed again after collecting both Pearl Beans. In the remake, this area can be briefly revisited by practicing the dash and tickle moves in the guide.
The stairway that leads to the four big candles on the fourth floor of Joke's End becomes inaccessible once Mario lights all the candles and returns to the third floor, with the door closing shut behind him.
In Beanbean Castle Town, the northwestern, southwestern and southeastern houses in the western half of the town are inaccessible when the player visits it for the first time, and become inaccessible again after the town's second destruction when the Mario Bros. return after defeating Popple and Birdo in Teehee Valley. At that point in the game, the northern double-entranced house and southeastern house in the eastern half cannot be entered again as well, especially after the Mario Bros. defeated Cackletta inside of Bowletta.
The non-transformed Peach's Castle in the past is not revisitable after Baby Bowser is defeated. The player cannot revisit the Koopa Cruiser when controlling Baby Mario and Baby Luigi. The interior of Professor Elvin Gadd's lab on Thwomp Volcano cannot be entered again after the fire is doused. The Shroob Mother Ship cannot be revisited after being ejected from it. All tutorial courses cannot be revisited either.
Mario & Luigi: Bowser's Inside Story / Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey
The non-transformed Peach's Castle at the beginning of the game is not revisitable after Bowser eats the Vacuum Shroom to inhale everyone in the Conference Hall. The areas with the dirt piles in the Toad Town Caves and the Tunnel cannot be revisited once Project K is completed when Bowser arrives in the Treasure Chamber in Bowser's Castle. In the Bowser Jr.'s Journey mode, the first level in the game, First Battle!, cannot be replayed after beating it.
When Mario first enters the Dream World, he appears in a rift and moves in a similar manner to Luiginary Antigravity to reach the portal to Dreamy Pi'illo Castle. In subsequent visits to the Dream World, this rift is not visited again.
In Mushrise Park, north of the entrance to Somnom Woods, there is a secluded area which is not connected to Mushrise Park's main map. However, towards the end of the game, this becomes the first section of Neo Bowser Castle, and the original version cannot be revisited again.
The last two areas in Dreamy Neo Bowser Castle where Dreamy Luigi fights Giant Bowser become inaccessible after defeating the latter, as the cannon that leads to the first area no longer becomes functional, marked by a green X above it.
The storage room in Peach's Castle cannot be accessed again after the paper characters are released from the book.
There is a mandatory tutorial mission in Peach's Castle at the start of the game, in which several Paper Toads are found. This mission cannot be replayed after it is completed, as it does not appear in the Lakitu Info Center mission list.
After defeating Bowser Jr. and Paper Bowser Jr., Bowser's Castle in its regular state becomes inaccessible once it rises from its pool of lava and becomes Neo Bowser Castle. After this point, the undamaged Peach's Castle also cannot be revisited, as it remains in a ruined state until the end of the game.
Donkey Kong Country series
Once the first seven bosses are defeated, Troff 'N' Scoff's area is no longer accessible as the portal vanishes once that level's boss is defeated.
After using the Rare Orbs to grant access to the Golden Temple and, by extension, the Cloud world, the Golden Temple will become the "Cloud Gateway" on the world map, and the player will not be able to replay the segment just before entering the temple. Instead, Donkey Kong is immediately transported to the Cloud world upon selecting the Cloud Gateway on the world map.
After defeating Bowser in World 8-, the player faces Bowser Jr. and Bowser and His Minions in a multicolored void for the final battle. Once Bowser joins the player's team, the latter area cannot be revisited.
In the Paranormal Productions, the cameras in each of the four sets cannot be viewed after obtaining the elevator button from Morty, preventing Gooigi from being able to revisit the alternative versions of those sets while Luigi is viewing the cameras.