History Main / DirectionallySolidPlatforms

->'''Through-floors''': "A one-way floor!! Hunh? What, was it too much trouble to make it two-way?! Anyway, you jump up, then you can't go down again!!"

%%* ''VideoGame/KidIcarus'' NES game has this in several places.

** ''VideoGame/ShantaeRiskysRevenge'': The jumping when ducking on a platform in Scuttle Town phases Shantae through them, but not the ones in enemy areas like Squid Baron's labyrinth.

* ''VideoGame/{{Shantae}}'': Although you can jump up through platforms in every game, there's no going back down except in ''VideoGame/ShantaeHalfGenieHero'', so they're easy one-way gates in ''VideoGame/Shantae2002'', ''VideoGame/ShantaeRiskysRevenge'' and ''VideoGame/ShantaeAndTheSevenSirens''.

* ''VideoGame/{{Shantae}}'': Although you can jump up through platforms, there's no going back down except in ''VideoGame/ShantaeHalfGenieHero''. ''VideoGame/ShantaeAndTheSevenSirens'' makes heavy use of them as one-way gates.

%% * Many areas in ''VideoGame/SonicTheHedgehog'' games feature these platforms. For example, Green Hill Zone is full of them.

** These kinds of platforms are present in every main series game besides the original, and even the original Super Mario Bros. style has them in ''VideoGame/SuperMarioMaker''. [[EarlyInstallmentWeirdness Which makes it confusing]] when these platforms avert this trope in the original ''VideoGame/SuperMarioBros1'' or its ''[[VideoGame/SuperMarioAllStars All-Star]]'' remake!

* ''VideoGame/SuperMarioBros'':
** These kinds of platforms are present in every main series game besides the original, and even the original Super Mario Bros. style has them in ''VideoGame/SuperMarioMaker''. [[EarlyInstallmentWeirdness Which makes it confusing]] when these platforms avert this trope in the original ''VideoGame/SuperMarioBros'' or its ''[[VideoGame/SuperMarioAllStars All-Star]]'' remake!

-->-- Wario, ''VideoGame/WarioLand4'' manual.

** Frequent in the ''VideoGame/WarioLand'' spinoff series. The primary use of the "Zombie Wario" transformation is that he can go down through these kind of platforms, though ''VideoGame/WarioMasterOfDisguise'' gives the ability to Dragon Wario instead.

->'''Through floors''': "A one-way floor!! Hunh? What, was it too much trouble to make it two-way?! Anyway, you jump up, then you can't go down again!!"

* You can pull yourself up of platforms like these in ''VideoGame/BionicCommando''.

* ''Celeste'' has wooden platforms, which usually appear after screen transitions to block backtracking. Unlike just about all the other environment, they have no thickness so Madeline cannot hang/climb from sides of these wooden platforms. Also, clouds behave similarly, but combine it with [[SpringsSpringsEverywhere bounce pad]] function too.

* ''VideoGame/JumpKing'' manages an inversion of this trope, of course for the purposes of [[RageGame frustrating the player]]: sinking sand platforms is where Jump King will slowly sink in, requiring the player to constantly jump to avoid falling through them and plummeting, losing progress. However, when colliding with the sinking sand from the sides or from below, Jump King will simply bounce away like from any solid platform.

* ''VideoGame/{{N}}'' and its commercial remake ''N+'' have four varieties of directionally solid platforms. It's just one block, but it appears turned in every single direction, resulting in platforms you can fall through from above, but not jump through from below and vice versa, and platforms you can go through from left to right, but not the other way around and vice versa.

* The Wii version of ''VideoGame/ABoyAndHisBlob'' has platforms that are not solid from below but solid from above. You can't drop down them unless you happen to have a hole with you.

* ''Franchise/{{Castlevania}}'' games (particularly in ''VideoGame/CastlevaniaTheAdventureRebirth'') often have platforms that can be jumped through from below. There are also stairs which partially behave that way.

* ''VideoGame/{{Contra}}'' has lots of platforms which are solid from above. It's possible to go through them from above by ducking and hitting jump.

* In ''VideoGame/DragonsWake'' the player can jump up past wooden bridges, giant mushrooms and the roofs of houses in order to land on them.

* ''VideoGame/{{Kirby}}'' games commonly feature platforms which are solid from above but you can jump through them from below. There are both can-be-dropped-down and cannot-be-dropped-down variations. Since you drop through them by just pressing Down, Kirby can't duck on thin platforms.

* ''VideoGame/{{N}}'' and its commercial remake ''N+'' have four varieties of directionally solid platforms. It's just one block, but it appears turned in every single direction, resulting in platforms you can fall through from above, but not jump through from below and vice versa and platforms you can go through from left to right, but not the other way around and vice versa.

* ''VideoGame/{{Psychonauts}}'': In some locations, it's possible to jump while directly under a trampoline. You go through the trampoline, but are bounced even higher.

%% * Many areas in ''VideoGame/SonicTheHedgehog'' games feature these platforms. For an example, Green Hill Zone is full of them.

%%* They're in the''VideoGame/WizardsAndWarriors'' series.

* Two variants feaature in ''VideoGame/TribalHunter'', the common floating-platform type that can be ducked through if needs be and the much rarer variant that completely bridges a gap and ''has'' to be ducked through to bypass.

* Some ''VideoGame/{{Action 52}}'' games had platforms not solid from below.
* ''Videogame/{{Alien 3}}'' had these kinds of platforms.
* ''[[VideoGame/BatmanSunsoft Batman: Return of the Joker]]'' has these platforms, too.
** As did the 8-bit ''Batman'' game available on home computers.

* Both ''VideoGame/ChipNDaleRescueRangers'' NES games have these platforms.
* ''VideoGame/CommanderKeen'' had the full works... not just the vertical version but one-way left or right blocks in the first trilogy, as well as platforms that you could fall through but are solid from below.

* ''VideoGame/FancyPantsAdventures'' uses them after Fancy Pants Man jumps or runs upwards; the platforms don't allow him to drop down, though usually, he can just drop off the side.

* ''VideoGame/EarthwormJim'' had some platforms that can be jumped through from below.

* Both ''VideoGame/TheFlintstones'' NES games had those kind of platforms.
* Many ledges in ''VideoGame/GhostsNGoblins'' series behave like that.

** The earlier ''VideoGame/MapleStory'' had this as well. Jumping down was handled by holding the down key and pressing the jump key once for each descent.

* Some platforms in ''VideoGame/JackieChansActionKungFu''.
* Numerous platforms in ''VideoGame/JazzJackrabbit'' work that way.

* ''VideoGame/TheJungleBook'' NES and SNES game had these platforms.
* ''VideoGame/KidIcarus'' NES game has this in several places.

* ''VideoGame/LinusSpacehead'' and ''Linus Spacehead's Cosmic Crusade'' often use these platforms.

* The ''VideoGame/MontyMole'' games have many platforms like this.

* Present in ''VideoGame/{{Predator}}'' NES game.

* Platforms in on-foot sections of ''Ultimate Stuntman''.
* Often present in ''VideoGame/{{Vectorman}}''.
* They're in ''VideoGame/WizardsAndWarriors'' series, too.
* A few ''VideoGame/WonderBoy'' games have platforms like that. So do ''VideoGame/AdventureIsland'' games.
* In ''VideoGame/YoshisCraftedWorld,'' this is [[JustifiedTrope justified.]] One-way platforms are depicted as "tabs" attached to surfaces that fold back when Yoshi is jumping up through them. However, they only fold in one direction, so Yoshi can't go back through them.

* The original ''VideoGame/{{Rayman}}'' does this too, in the most frustrating variety imaginable: One ''entire'' room in the game is made up of bouncy platforms that you can jump up through, and the goal is to get to the bottom. It's ''incredibly'' easy to take one misstep and bounce all the way to the top of the room.
* Platforms and ledges in ''VideoGame/{{Ristar}}''.
* If you go through one of those platforms in ''VideoGame/{{Shantae}}'', there's no going back down except in ''Half-Genie Hero''. ''Seven Sirens'' makes heavy use of them as one-way gates.
* ''VideoGame/{{Shinobi}}'' games had this thing going on.

* ''Franchise/{{Metroid}}'' games invert this trope with Crumble Blocks, which fall apart instantly when hit from above but block any attempts to climb back up. They're frequently used as one-way gates, with an added "gotcha!" factor.

[[quoteright:350:[[VideoGame/{{Unity}} https://static.tvtropes.org/pmwiki/pub/images/unity_platform_tutorial.png]]]]

* ''Franchise/{{Metroid}}'' games invert this trope with Crumble Blocks, which fall apart instantly when hit from above but block any attempts to climb back up.