->''"There's a stage where the screen keeps scrolling up. If you're caught at the bottom, you die. In Trevor Belmont's world, what killed him? The T.V. Screen?"''
-->-- '''WebVideo/TheAngryVideoGameNerd''', on ''Videogame/CastlevaniaIIIDraculasCurse''

A level in a PlatformGame where the screen scrolls at a constant rate (like in [[ShootEmUp rail shooters]]), no matter where the player runs or jumps to. This doesn't make any sense at all, but since you didn't care when you were 12, why start now?

Generally, the gameplay in these levels shifts from exploration towards a more "survivalist" task of avoiding a combination of fixed and moving obstacles. The player must choose between moving forward early, at the risk of running afoul of some not-yet-seen obstacles, or waiting to move later, where he runs the risk of being forced to move by the level's scrolling at moment when the obstacles are more dangerous.

Often you will be mortally crushed if you get caught between the advancing side of the screen and a stationary wall, making the screen boundary a kind of AdvancingWallOfDoom. Only occasionally are these kinds of levels coupled with an ''actual'' Advancing Wall Of Doom, providing some justification for the enforced scrolling. In vertical-scrolling levels, there will be an ever-rising bottomless pit, and solid platforms that fall below the edge of the screen will be consumed by an [[NothingIsScarier unknown]] {{f|ridgeHorror}}orce.

These levels can be [[ThatOneLevel a bit aggravating]] to play, particularly when combined with any number of ClassicVideoGameScrewYous.

Often times, you can't simply fast-forward the scrolling by advancing in the direction of it, forcing you to deal with whatever speed the screen is moving at. As such, Auto-Scrolling Levels are the bane of many {{speedrun}}ners and impatient players.

If the scrolling is fixed such that it cannot be outrun, the level can be the bane of {{speedrun}}nners and players otherwise trying to finish the level quickly.

When the entire game is one of these, it's an EndlessRunningGame. Whether MinecartMadness is a subtrope is debatable; similar to endless runners, these levels force the character to move a fixed speed, challenging the player to jump, duck, and/or attack at the right times. If this occurs during a boss battle, you may be fighting an AdvancingBossOfDoom or a GetBackHereBoss.

!!Video Game Examples:

* Many levels in most ''Franchise/SuperMarioBros'' games are of this type.
** The auto-scrolling levels in ''VideoGame/SuperMarioBros3'' include 1-4, 3-6, 5-6, 5-9, 6-2, 6-7, 7-4 and all the airship, tank and navy levels.
%%** ''VideoGame/SuperMarioWorld''
** The ''Super Mario Bros.'' GameAndWatch from the 80's is fixed scrolling, the first example of this trope in the ''Mario'' series.
** The autoscrolling levels in ''Super Mario World 2: VideoGame/YoshisIsland'' include 1-5, E-1, 6-5, 6-Secret and part of 6-8. ''Yoshi's Island DS'' has these in 2-6, 3-1, 3-5, 4-Secret and 5-5. In both games, the scrolling screen will go in all sorts of different directions, crossing the same part of the level more than once in more than one different direction, and there's no justification of any sort.
** Inverted in ''VideoGame/SuperMarioGalaxy''. Only a part of the level is manifested physically, meaning that stepping outside the solid area drops you in a bottomless pit. Since the ratio of the solid ground moves constantly, this gives the net effect the same as a fixed scrolling screen.
** Inverted in parts of ''Super Mario World'' and ''New Super Mario Bros.'' with some castle levels having crawling block platforms.
** Justified in level 7-3 of ''VideoGame/NewSuperMarioBros1'', where the entire level takes place on the back on a giant Wiggler.
** ''VideoGame/SuperMario3DLand'', playing exactly like the 2D Mario games except on a 3D plane, has these.
* Many levels in ''[[VideoGame/{{Kirby}} Kirby's Dream Land 2]]'' and ''3''. ''VideoGame/KirbySuperStar'' had two sections like this in the "Revenge of Meta Knight" subgame.
* ''[[DonkeyKongCountry3DixieKongsDoubleTrouble Donkey Kong Country 3]]'' has "Ripsaw Rage" and "Kong-Fused Cliffs", which have a giant saw and the rope you're climbing burning as [[AdvancingWallOfDoom Advancing Walls Of Doom]], respectively.
* ''Franchise/SonicTheHedgehog'':
** Sky Chase Zone in ''VideoGame/SonicTheHedgehog2'' and its SpiritualSuccessor, Sky Fortress Zone Act 1 in ''VideoGame/SonicTheHedgehog4''.
** In Angel Island Zone, Act 2 of ''[[VideoGame/Sonic3AndKnuckles Sonic The Hedgehog 3]]'', there's a portion before the BossBattle where the screen starts scrolling to the right, then Robotnik's airship starts dropping bombs at you. If you let off the speed for a second, [[AdvancingWallOfDoom you'll drift too far left and get hit]]. All you have to do is hold right for a few seconds until the barrage stops.
** In ''[[VideoGame/Sonic3AndKnuckles Sonic & Knuckles]]'', during the Boss Battle in Mushroom Hill Zone, Act 2, the screen scrolls right, forcing you to leap over spiked hurdles to pursue Robotnik. Later in the same game, the screen starts scrolling to the right during the boss battle of [[LethalLavaLand Lava Reef]] Zone, Act 2. The real danger of this area is simply jumping from platform to platform to keep up with the screen.
** The Death Egg Zone FinalBoss, after you blow up its hands. The robot itself (and later, the collapsing platforms) also doubles as an AdvancingWallOfDoom.
** The second act of the Bridge Zone in the first ''VideoGame/SonicTheHedgehog'' for Master System (or Game Gear).
** The special zones deserve special mention as a staple of their behavior is the inability to stop running forward (towards the background).
*** Half-pipe track from ''Sonic 2'' and ''Sonic 3D Blast''
*** Blue orb-collection spherical track from ''Sonic 3''
*** UFO smash arena from ''Sonic CD''
*** Full-pipe track from ''VideoGame/SonicHeroes''
** ''VideoGame/SonicTheHedgehog2006'' features areas of Sonic's levels that have been dubbed by one speedrun as "Mach Speed Zones." Sonic is forced to run forward, jumping and dodging obstacles, and can not leave his assigned course by too much or get hit by too many objects unless he wants to breakdance into oblivion.
** ''VideoGame/SonicLostWorld'' throws in one more, for old time's sake: Desert Ruins Zone 4 scrolls forward at a slow pace with a whirlwind at the back that will kill Sonic if he touches it.
* The Jet Bike levels from the ''VideoGame/MegaManX'' series. [[ThatOneLevel Fans do not want to remember.]]
** In ''X6'', the hidden sub-stage of Metal Shark Player's recycling facility stage has a crushing ceiling AND forced scrolling! [[SarcasmMode Joy!]]
** Burn Rooster's stage from ''X8.'' [[NintendoHard Many had nightmares.]]
** The jetboard sections in ''VideoGame/MegaMan8'' are particularly irritating. [[MostAnnoyingSound "Jump! Jump!" "Slide! Slide!"]]
** The fixed scrolling in Stage 1 of Dr. Wily's Castle in ''VideoGame/MegaMan2'' is brief, but very annoying the first time. 99% of the level scrolls normally, until the end when it suddenly begins to move on its own at a rate that's slightly slower than the player's movement. The transition seemingly happens in the middle of a jump between two one-block-wide platforms and if the unprepared player doesn't simply miss and fall into the bottomless pit, he'll soon be knocked in anyway when a giant dragon that takes up half the screen flies in behind him.
** In ''VideoGame/MegaMan4'', the third level of Dr. Cossack's fortress is one of these. It had a decent number of ways to slow you down to the screen's speed and was for the most part a pretty decent level. The CrowningMusicOfAwesome [[http://www.youtube.com/watch?v=MlRGotA3Yzs&feature=related doesn't hurt, either]].
** In ''VideoGame/MegaMan5, there is a section at the latter half of Gyro Man's stage that is exactly this, and you must dodge the spikes that you are approaching.
** The first section of Tengu Man's stage in ''VideoGame/MegaManAndBass'' auto-scrolls, and you must hop on fast-popping balloons to boot.
** From RomHack ''VideoGame/Rockman4MinusInfinity'':
*** Sections of Skull Man's stage. It has ''every kind of platform'' from the Mega Man series. Plenty of lives will be lost on those sections.
*** Wily Stage 2's second half. It has an {{Homage}} to the ''VideoGame/{{Gradius}}'' series' High Speed Zone stages. It even comes with a the shutting doors and a song from the NES ''VideoGame/{{Gradius}} 2'' soundtrack.
* ''VideoGame/WonderBoyIIIMonsterLair'' alternates between autoscrolling platform stages and ShootEmUp {{boss battle}}s.
* ''VideoGame/SuperSmashBros'':
** The series features entire arenas that scroll through a continuous loop of level elements, including:
*** Icicle Mountain in ''Melee''.
*** Rumble Mountain and Mushroomy Kingdom in ''Brawl''.
*** Mushroomy Kingdom and Dreamland in ''Smash 4 3DS''.
** One assistance character in ''Brawl'', the Devil, makes non-scrolling stages suddenly start scrolling in random directions for a little while. This is the only InterfaceScrew that can hurt the computer, because if you get scrolled too far off of the screen you'll die.
** Some of the most [[ThatOneLevel annoying platforming segments]] in the ''Subspace Emissary'' mode of Brawl featured this too. The worst ones also included traps that would ''fling you offscreen'' if you made one misstep. Even if you can keep up with the scrolling camera admist the hordes of GoddamnBats, trying to [[GottaCatchEmAll collect the trophies and other goodies to earn 100%]] ''at the same time'' almost reaches controller-breaking levels of frustration - especially on the hardest difficulties, with more traps, more knockback, and ''faster scrolling''.
* Every level in ''VideoGame/BalloonKid'' is one of these.
* The Subwarine levels in ''VideoGame/WarioLand'' The Shake Dimension are these. The first Wario Land has one of these as the first level in the Oven Canyon zone.
* Preceding the FinalBoss in ''VideoGame/EccoTheDolphin'' is a forced-scroll level combined with TheMaze; it takes place underwater and scrolls up, down, sideways, doubles on itself, and [[MarathonLevel lasts a good five minutes]]. The only break the game cuts you is the level also continually regenerates your health, due to it being a giant meat grinder. Unfortunately, losing to the boss sends you back to the maze again... It even actively tries to fake you out at certain points, making you think you have to go a certain way and then turning back and trying to crush you when you do go that way. Or even making a tiny part of a chamber the only safe place where you won't get crushed. Almost no one will make it through the first time, due to the need to [[TrialAndErrorGameplay memorize the correct path in some places]]. The sequel ''Tides of Time'' has at least four on hard mode. All other modes at least two.
* ''TinyToonAdventures: Buster Busts Loose'' (SNES) has some levels where [[AdvancingWallOfDoom the edge of the screen kills you]].
* ''VideoGame/LittleNemoTheDreamMaster'' gave us House of Toys, a level that took place on the back of a moving toy train set where you had to survive divebombing toy airplanes, bombs dropped by toy hot air balloons and plenty of [[SpikesOfDoom instant death spikes]] on [[DescendingCeiling descending ceilings]]. [[BubblyClouds Cloud Ruins]] has a section where the screen suddenly starts scrolling up, and then where it goes back down again; in both cases the bottom of the screen becomes deadly.
* The first ''VideoGame/{{Rayman}}'' game has a few of these, semi-justified by a raising water level or some [[AdvancingWallOfDoom big enemy chasing you]] (Moskito with a huge spiked ball, and Mr. Stone in a later level).
** An interesting variation: soon after acquiring a temporary flight powerup from a hippie, the start of one part of the level immediately places the eponymous hero in a situation where he has to use his helicopter hair to cut the frayed sections of two ropes, in order to drop the rocks they carry into the slowly sinking water beneath, before they drag the faster-falling ceiling below the surface... Perhaps it's better to show than to tell? (starting at around 2:25 in [[http://www.youtube.com/watch?v=y3anfBkIcn0&fmt=18 this video]])
** In ''VideoGame/Rayman3HoodlumHavoc'', after you blow up the furnace in Hoodlum Headquarters, you have to climb up a tall tower while lava rises below you.
** ''VideoGame/RaymanOrigins'' has some too, especially in the Tricky Treasure challenges. Once again, semi-justified by having the level start falling apart behind the treasure chest.
* [[{{Nitrome}} Cave Chaos]] replicates the effect, but at the same time shows you what the hell's happening: the floating platforms behind you are constantly breaking apart and dropping into the depths below. And to keep you from getting too far ahead, the ground ahead of you is constantly ''assembling'' out of pieces coming from offscreen. Get particularly far behind, and you may find yourself jumping from falling piece to falling piece just before each vanishes off the bottom of the screen.
* The overhead River stage in ''Adventures of Tom Sawyer'', and the BossBattle in the Sky stage.
* The final level in ''VideoGame/{{Braid}}''.
* The final stage of ''VideoGame/{{Jumper}}'' is a vertical version of this.
* The Tower, The Panic Room, and The Final Challenge in ''VideoGame/{{VVVVVV}}''. SpikesOfDoom appear when you near the top or bottom of the vertically scrolling screen. Also, The Tower is one of the stages available as a TimeTrial.
* ''VideoGame/KidChameleon'' had a few of these that are [[AdvancingWallOfDoom Advancing Walls Of]] '''[[ThisIsADrill DRILLS]]''', including a cruel one that had a choice of two paths at the end, not knowing where they go. One path leads to a sign saying "TOO BAD" with no exit and you just get squished by it.
* ''VideoGame/{{Purple}}'' features this in stages 2-3 and 5-2, with the latter even having multi-directional scrolling.
* ''VideoGame/CastlevaniaIIIDraculasCurse'' has several automatically scrolling vertical shafts. In the case of Blocks 5-0B and 9-03, the scrolling is discontinuous--every few seconds the tower trembles and sinks a bit into the ground.
* ''VideoGame/PuttPutt Goes to the Moon'' has the minigame ''[=Bear Stormin'=]'', which plays this straight for the entire game. This was later recycled as ''[=Circus Stormin'=]'' in ''PuttPutt and FattyBear's Activity Pack''. [[SurpriseDifficulty Despite being in games made for children, they can get brutally difficult.]]
* ''VideoGame/DistortedTravesty'' loves this trope, forcing you to race through already sadistically brutal PlatformHell sections while a wall of instakill spikes follows behind or beneath you so fast a single mistake will force you to repeat the whole section.
* Seen in ''VideoGame/NewSuperMarisaLand''. Which makes sense as it's essentially a Super Mario clone.
* The first cave escape stage in ''VideoGame/AladdinCapcom''. Actually both cave escape stages scroll automatically, but only the first has platforming.
* ''VideoGame/{{Klonoa}} Advance'' 1 and 2 have some auto-scroll levels.
* ''Atomic Runner Chelnov'' is entirely made of these ({{Boss Battle}}s excepted), being essentially a HorizontalScrollingShooter[=/=]PlatformGame hybrid.
* ''VideoGame/JackieChansActionKungFu'' has a few stages where the screen starts scrolling to the right, with pillars shooting up from the ground in places.
* Though a top-down non-platform game, ''VideoGame/DevilWorld'' features this as its main gimmick. The Devils on the edges of the screen move a frame over the maze, trying to crush Tamagon between the frame and the maze walls.
* ''VideoGame/SuperMarioFusionRevival''
** World 2-S5: Arabian Night. It takes place in the rooftops of an Saudi Arabian village at night. Watch out for the saber-tossing mooks and the crows.
** World 3-4: Venomous Void. It is full of dangerous electric seaweed and electric jellyfish.
* This is every level in the vertically scrolling ''VideoGame/RaptorCallOfTheShadows'', in which the player pilots a fighter jet through enemy territories. It is at least somewhat justified, as an airborne jet can hardly be expected to remain stationary with respect to the ground.
* Occurs in ''VideoGame/PlaystationAllStarsBattleRoyale'' on [[VideoGame/InFamous Alden's Tower]], though at least it's done periodically.
* Multiple levels in ''Nihilumbra'' have you chased by [[AdvancingWallOfDoom The Void.]]
* The collapsing castle stage in ''Disney/TheJungleBook'' for SNES.
* ''[[VideoGame/BatmanSunsoft Batman: Return of the Joker]]'' for NES has auto-scrolling in Stages 1-2 (RoofHopping while being bombarded by an airship), 4-1 (TraintopBattle) and 6-2 (tank battle). The LiftOfDoom areas are also inescapable until the lift stops rising, either.
* ''VideoGame/OneWayHeroics'' is a {{Roguelike}} that operates on this principle. You're forced to keep moving forward to avoid getting swallowed up by the encroaching darkness. Every move you take, whether it's to attack, talk to [=NPCs=], use items, or change your equipment, moves the level forward. If you get caught on the left side of the screen, you die, and the game is over.
* ''VideoGame/{{Something}} series'':
** The secret exit route in Skulls Cave.
** Perilous Ice, which is made even more dangerous because of ice physics. Luckily, Yoshi is there to make things easier. You need him for the Switch Palace Exit.
** Vertical Chao, where Mario has to ride on a tiny platform and has to dodge many enemies and obstacles.
** Vile Vine, where Luigi has to climb a green apple vine and dodge obstacles at the same time. To get the secret exit, Luigi has to beat the green apple vine in a race.
** Above the World is found in the Special World. Luigi has to dodge Flying Wigglers and use acorns to climb to the top. It's also a MarathonLevel.
* The boat level in ''The Flintstones: The Rescue of Dino and Hoppy''.
* The MCP mission in [[Creator/MidwayGames Bally/Midway's]] ''{{VideoGame/TRON}}'' arcade game.
* Two of the levels from Ubisoft's ''VideoGame/TheSmurfs2'' constantly scroll upwards, forcing the player to move upwards to avoid falling off the screen.
* In ''VideoGame/TheAdventuresOfLomax'', the boss stages in the first 3 worlds are like this.
* ''VideoGame/ShovelKnight'' has three auto-scrolling screens, each containing unique mechanics to up the frustration.
** Clockwork Tower: The bottom of the screen has [[LedgeBats rockets that knock you off the ladder and platforms]], half of the platforms move across the screen, and the other half are conveyor belts pointed the wrong way.
** Flying Machine: A wind is constantly blowing against the direction of travel, slowing you down. Most of the platforms are also temporary and will fall seconds after you touch them.
** Tower of Fate: Half of the screen has slowly moving platforms that will block you from continuing and move slowly, meaning a missed opening is quickly fatal. The second half consists of digging your way upwards through the dirt while dodging exploding rats.
* The first part of the final level of ''Papa Louie 2: When Burgers Attack'' contains an actual AdvancingWallOfDoom, complete with pickets on top.
!!Non-Video Game Examples:


[[folder: Pinball ]]

* The VideoMode for Creator/{{Gottlieb}}'s ''Pinball/SuperMarioBros'' and ''Pinball/SuperMarioBrosMushroomWorld'' have a simplified version of ''VideoGame/SuperMarioBros1'', where Mario moves automatically across the screen. The flipper buttons are used to either make him jump or to run faster.
* ''Pinball/SuperMarioBrosMushroomWorld'' also has a Frog Mario swimming game, where Mario moves automatically and the player makes him swim up and down to avoid enemies.
* The VideoMode for ''Pinball/DoctorWho'' has the chosen Doctor escaping from Daleks, jumping to avoid obstacles in his path.

->'''SelfDemonstrating/CrankyKong:''' "A bit aggravating," they call these auto-scrolling levels? Back in my day, we didn't have ''any'' scrolling whatsoever -- just one static screen, maybe a different static screen for different levels! And we ''liked'' it, by gum!