History Main / OneTimeDungeon

[[AC: Action]]

[[AC: Action Adventure]]

[[AC:Action RPG]]

[[AC: Eastern RPG]]

* ''VideoGame/FinalFantasyVII'' has several locations that can only be visited once to name of. Sectors 1 and 5 reactors, Shinra Headquarters (won't be revisited again until the raid late in disc 2), Temple of the Ancients, Corel Prison, Gaea's Cliff, Underwater Reactor, and Midgar during the raid.
* ''VideoGame/FinalFantasyVIII'': There's Dollet Communications Tower, Galbadia D-District Prison, Missile Base, Galbadia Garden (during the attack), Great Salt Lake and Lunatic Pandora (only visited twice) leading to almost all locations inaccessible due to Time Compression. Not to mention the Laguna dream sequences.

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* TheLegendOfZelda series generally avert this, but it has some examples:
** TheLegendOfZeldaPhantomHourglass has the fourth dungeon, the Ghost Ship. It has a TheDevTeamThinksOfEverything moment: if you leave without taking its Heart Container, the only item in the dungeon relevant to OneHundredPercentCompletion, it is sent to you via mail to avert it being LostForever.
** TheLegendOfZeldaSkywardSword has the final dungeon, the Sky Keep, which disappears once you [[spoiler: grab all of the Triforce Pieces.]] It has no Heart Pieces.
** ''ZeldaIITheAdventureOfLink'' provides an example with the Palaces that become Mountain squares on the overworld map after you beat them, but only after you both defeat the boss and collect the required item, fortunately. The only things that can truly be LostForever are some ExperiencePoint bonuses.

** Also the Giant of Bab-il, and wherever Golbez was keeping Rosa.

** TheLegendOfZeldaPhantomHourglass has the fourth dungeon, the Ghost Ship. It has a TheDevTeamThinksOfEverything moment: if you haven't grabbed its Heart Piece, the only item in the dungeon relevant to OneHundredPercentCompletion, it is sent to you via mail to avert it being LostForever.

* ''ZeldaIITheAdventureOfLink'' provides an example with the Palaces that become Mountain squares on the overworld map after you beat them, but only after you both defeat the boss and collect the required item, fortunately. The only things that can truly be LostForever are some ExperiencePoint bonuses.
* The fourth dungeon -- and '''only''' the fourth dungeon -- in ''TheLegendOfZeldaPhantomHourglass'' -- is an example, but averts one instance of LostForever because [[TheDevTeamThinksOfEverything The Dev Team Thought Of Everything]].

* ''VideoGame/FinalFantasyX'' has the Bevelle temple and the Via Purifico.

[[AC:Sports Game]]
* Career Mode in ''PunchOut'' for the {{Wii}} works this way: once a circuit is finished, you can't fight through the whole thing in sequence again, though all of the content remains available in Exhibition Mode. And [[FailureIsTheOnlyOption "completing"]] Mac's Last Stand locks that mode out entirely, too, leaving just the Exhibition fights. [[spoiler: [[LostForever Too bad]] if you didn't unlock the BonusBoss before losing three times in Last Stand.]]

* The Distortion World in ''PokemonPlatinum''

* ''ZeldaIITheAdventureOfLink'' provides an example with the Palaces that become Mountain squares on the overworld map after you beat them.
** But only after you both defeat the boss and collect the required item, fortunately. The only things that can truly be LostForever are some ExperiencePoint bonuses.

* ''GoldenSunDarkDawn'': This happens twice in the game, at first preventing you from returning to the first two towns, but the second prevents you from revisiting nearly half the world map, which is pretty damn annoying since you're most likely to leave behind ''a lot'' of [[OneHundredPercentCompletion Djinns, weapons and Summons]].

* In ChronoTrigger, the Black Tyrano fortress is destroyed when Lavos crashes into it. Mt. Woe is no longer accessible after the chain breaks and it falls into the sea. The Ocean Palace is no longer accessible after [[spoiler:Lavos awakens, destroying it and the Kingdom of Zeal]].

* ''MarioAndLuigiSuperstarSaga'' has the ''entire beginning of the game'' (specifically, Mario's house, Peach's castle (where you fight Bowser), Toadtown Square, the Koopa Crusier, and the small bit in Stardust Fields before the Border Jump minigame).

* ''{{Oblivion}}'' has the Painted World area and a dream sequence that can't be returned to. Closing an Oblivion gate destroys that instance, although it's possible (and indeed likely) to find an identical map behind another gate, but completing the main quest line permanently closes all the gates, cutting off access to Oblivion entirely.

* In ''{{Fallout 3}}'', completists would be advised to grab the collectible Energy Weapons bobblehead during the brief Raven Rock sequence...Since once the door shuts behind you, you're never getting back in there.
* The Sierra Madre DLC of ''FalloutNewVegas'' cannot be visited after it is completed, unlike the Old World Blues, Honest Hearts and the Lonesome Road add-ons.

* In the first Xbox ''NinjaGaiden'', you can't go back to the Ninja fortress of chapter 1 nor in chapter 3's airship since it crashes.

* In both ''{{Mother}}'' and ''EarthBound'', [[WackyLand Magicant]] vanishes. In the first game, Magicant can be revisited prior to completing a particular subquest; in the latter, it's a true One Time Dungeon with a few special items that can be LostForever.
* ''{{Mother 3}}'' uses a Chapter system, but most dungeons and areas in the game can be revisited in at least one later chapter (although the enemy types and layout will change with the plot). The major exceptions are the Attic Dungeon in Chapter 4, which becomes inaccessible once the Chapter ends with its completion, and the Thunder Tower, which is only accessible in Chapter 5 because the story at that point involves infiltrating and destroying it.

* ''{{Okami}}'' has the Moon Cave dungeon that cannot be accessed again once your defeat Orochi and leave it. There is also Oni Island, the miniature sections of the Imperial Palace, the Sea Dragon's body and Past Kamiki. This is not frustrating though since these areas will only contain VendorTrash, but no important secret item.
** The sequel ''{{Okamiden}}'' is not so forgiving though. It has the Five-Story Pagoda, the Moon Cave (again), the Underground Ruins, the Ice Cavern... All of these contain unique items that are needed for HundredPercentCompletion.

* ''FinalFantasyXII'' has several, and in an uncharacteristic act of kindness, the programmers indirectly tell you which ones by giving you a prompt about not being able to leave them until you finish them when you try to save in them:

** Rabanastre Palace during the heist

** Draklor Laboratory in Archades
* ''FinalFantasyIII'' has a floating Hyne Castle, which after finishing gets planted into a forest you're not allowed to get back to.
* ''FinalFantasyIV'' has the Tower of Zot which collapses once finished with.

* ''FinalFantasyVII'' has several locations that can only be visited once to name of. Sectors 1 and 5 reactors, Shinra Headquarters (won't be revisited again until the raid late in disc 2), Temple of the Ancients, Corel Prison, Gaea's Cliff, Underwater Reactor, and Midgar during the raid.
* ''FinalFantasyVIII'': There's Dollet Communications Tower, Galbadia D-District Prison, Missile Base, Galbadia Garden (during the attack), Great Salt Lake and Lunatic Pandora (only visited twice) leading to almost all locations inaccessible due to Time Compression. Not to mention the Laguna dream sequences.
* ''FinalFantasyX'' has the Bevelle temple and the Via Purifico.

* ''FinalFantasyVII'' has several locations that can only be visited once to name of. Sectors 1 and 5 reactors, Shinra Headquarters (won't be revisited again until late of disc 2), Temple of the Ancients, Corel Prison, Gaea's Cliff, and the Underwater Reactor.

* ''{{Okami}}'' has the Moon Cave dungeon that cannot be accessed again once your defeat Orochi and leave it. There is also Oni Island, the whole "miniature" sequence, the Sea Dragon's body and Past Kamiki. This is not frustrating though since these areas will only contain VendorTrash, but no important secret item.

* ''GoldenSunDarkDawn'': This happens twice in the game, at first preventing you from returning to the first two towns, but the second prevents you from revisiting nearly half the world map.
** Which is pretty damn annoying since you're most likely to leave behind ''a lot'' of [[OneHundredPercentCompletion Djinns, weapons and Summons]].

* The Sierra Madre DLC of ''FalloutNewVegas'' cannot be visited after it is completed, unlike the Old World Blues and Honest Hearts add-ons.

* ''ZeldaIITheAdventureOfLink''provides an example with the Palaces that become Mountain squares on the overworld map after you beat them.