
Its all about Butts and Bouncy Castles. Launch in with your friends or foes. Collect star power-ups and squash your opponents with your rear! Make yourself stand out against the competition in style!
Revenue comes from in-game items and microtransactions, which our price-based model doesn't estimate. Copies below reflect the player base, not paid sales.
Media

About
A game all about Butts and Bouncy Castles. Drop in with your friends, Activate Star Power-ups and Squash your opponents! Bounce in the Pit that is Free For All, Conquer the World in King of the Slide or Race to come first in Sky High Parkour! Make yourself stand out by finding outfits in-game.
Using your rear, propel yourself in any given direction, allowing you to maneuver like a deadly spring.
Commit to flips, in different directions to fill up your launch meter allowing your gasses to propel you forwards.
Launch yourself through stars throughout levels to earn power-ups that will aid you in battle, and assist in platforming!
Play a variety of gamemodes, from ones you know and love such as Free For All, or new ones such as King Of The Slide and Sky High Parkour. Each with their own set of maps.
Find Collectiballs throughout the maps, unlocking different outfits, colours and fart trails for you to style yourself with! Who has the shiniest rear of them all?
Genres
Stats
Languages: English**languages with full audio support
Engagement
Reviews
[h1] Honest Trailers Parody:[/h1] [i][Cue a chaotic, heavily distorted 2000s slap-bass riff that violently collides with a roaring, stadium-shattering explosion] 🎸⚡💥[/i] [b]EPIC VOICE GUY:[/b] In a world... completely obsessed with the pursuit of the ultimate rear-end revelation, prepare yourselves for the most deceptive, cheek-clapping bait-and-switch in digital history! From the developers who looked at a bouncy castle and engineered a platformer that feels like a high-stakes bomb defusal grid, comes [b]Bouncy Butt Castle[/b]! One wrong rotation, and the castle judges you! [b]THE RED DEVIL FROM COW AND CHICKEN:[/b] [i][Burps loudly, shoving his massive red face directly into the camera lens while doing a flamboyant spin][/i] Oh, turn down that awful racket, loudspeaker mouth! Hello, ladies and gentle-hams! Look at this absolute masterpiece of a digital disaster! The graphics look like a wholesome Saturday morning cartoon, but the moment you try to move, it is a total drag! Ooh, I love it! 🟥👹📢 [b]EPIC VOICE GUY:[/b] Hey! Stop interrupting the narration loop! Behold the dreaded "Dead Stop System"—where grazing a platform by half a millimeter doesn't result in a funny wipeout, it just instantly removes all forward velocity! [b]BOUMA (SUPER DUPER SUMOS):[/b] Hold on a minute, Mr. Narrator Guy! Where is the "Gluteus Maximus Power" in this thing?! Brothers! Strike the formation! ⛩️🧘♂️❌ [b]MAMOO:[/b] LET'S GO, SUMO! [b]KIMO:[/b] Sumo power activated! [b]BOUMA:[/b] [i][The three sumos stand in a tight triangle, gritting their teeth as their lower halves expand into glowing, neon energy grids with a blinding golden aura!]* Witness the true weight of justice! We shall crush this staircase! Aaaaand... IMPACT! *[Bouma leaps forward, grazes the step, and an instant red warning flashes: "WARNING: TOO MUCH SUMO ENERGY. PLEASE REDUCE MOMENTUM." His model freezes perfectly rigid and drops into a pit like a lead pipe.][/i] [b]MAMOO:[/b] Brother Bouma! No! It treated our legendary transformation like a catastrophic clipping error! [b]KIMO:[/b] This staircase is a worthy warrior opponent! [b]THE RED DEVIL FROM COW AND CHICKEN:[/b] [i][Prancing around them, howling with laughter]* THE FLOOR HAS DECLARED WAR! THE RECTANGLE HAS WON! THE CORNER HAS BECOME THE FINAL BOSS! You mighty heroes were defeated by an architectural standard! Beautiful! *[/i] [b]NOZOMI KAMINASHI (KEIJO!!!):[/b] Don't give up yet, Sumos! This is a high-stakes athletic investigation! Sayaka, give me the data! 🤸♀️✨ [b]SAYAKA MIYATA:[/b] [i][Adjusting her glasses, staring intensely at a digital blackboard covered in complex grid lines][/i] The operational vector is highly critical, Nozomi. If you enter the landing zone at a 37.9-degree angle instead of a perfect 38-degree angle, the collision mesh completely refuses to calculate a slide. It completely destroys the spirit of creative movement! [b]KAZANE ARAHAKABI:[/b] It's true! I have been defeated by a stationary object! A microscopic bump on the geometry completely absorbed my impact! [b]ANNA KAZUMI:[/b] This game is having a massive identity crisis! The color palette says it's for everyone, but the collision engine says absolutely not! 🧠🌀 [b]NON TOYOGUCHI:[/b] One wrong rotation and your whole career is completely wiped out! It's too much high precision under pressure! [b]CHIEF RANDALL CRAWFORD (PARADISE PD):[/b] [i][Huffing heavily, pushing past the athletes while unbuckling his duty belt][/i] Step aside, you colorful weirdos! Watch how a real law enforcement official handles a simple bounce pad! 👮♂️🥑🚨 [b]GINA JABOWSKI:[/b] Don't do it, Randall, you're too soft! [b]CHIEF RANDALL CRAWFORD:[/b] Nonsense! Watch me soar! [i][Randall belly-flops onto a trampoline. Because of his massive character volume, the rigid physics engine refuses to let him sink. Instead, it violently launches him horizontally at Mach 5, bouncing him perfectly rigidly off the walls like a stiff pinball.][/i] [b]CHIEF RANDALL CRAWFORD:[/b] [i][Screaming in a completely flat, non-ragdoll voice as his stiff body rockets around the room][/i] HEEEEELP! I HAVE BECOME A RUBBER BOULDER! THE INVISIBLE ENGINEERING RULES ARE COMBUSTING MY UNIFORM! GINA, DO SOMETHING! [b]GINA JABOWSKI:[/b] [i][Kicking down a green screen background, laughing maniacally as she fires a shotgun into the ceiling]* Do something?! Look at you, Randall! You look like a water balloon filled with concrete! Drop it low, Randall! SHAKE WHAT YOUR MAMA GAVE YA! TWERK FOR YOUR LIFE! DANCE, COPPY, DANCE! [i][Randall's model hits a corner, instantly halting all velocity upside down against a wall, his legs violently vibrating in sheer terror.][/i] * 🔫🤬🕺💥 [b]THE DUMMY THICC SNAKE (METAL GEAR):[/b] [i][Slithering into the frame very slowly, a heavy cardboard box balancing precariously on his absolute mountain of a lower body][/i] Colonel... I'm trying to sneak around the perimeter... but I'm dummy thicc. The constant friction of my tactical suit keeps triggering the game's instant-fail collision detection. Every time I try to squeeze past a corner, my hitbox clips by a single pixel and kills my momentum entirely. Stealth is no longer an option. 🐍📦🕵️♂️ [i][Suddenly, a dramatic explosion of green leaves and clean water erupts in the center of the studio as two completely uninvited superheroes emerge side-by-side.] 🌍💥⚡[/i] [b]CAPTAIN PLANET:[/b] By your powers combined, I am—wait, where am I? The mathematical distress of three sumos colliding tore a hole in space-time! I thought I was saving a polluted wetland, but the real disaster here is a playground where nobody can actually play! The structural rigidity is toxic! 🌳🔥 [b]CAPTAIN GYATT:[/b] [i][Flexing aggressively while flashing a blinding white smile at the camera][/i] The vibes are absolutely compromised, bros! I came here to audit the movement statistics and secure some serious gains, but this castle is delivering pure emotional damage! Your gains are being deleted by static hitboxes! It’s an absolute travesty for the fitness community! 💪💎 [b]THE RED DEVIL FROM COW AND CHICKEN:[/b] [i][Pops out from underneath Randall's flailing legs, holding a scoring sign that reads '0.0'] Oh, look at them all! They lure the innocent players in with the promise of hilarious bouncing, and then they lock them in a room with a physics professor who hates joy! It's a total catfish! *[Cackles hysterically][/i] 🦨💨 [b]OMPA LOOMPAS:[/b] [i][Dancing in a tight circle around the disgruntled cartoon characters and confused superheroes, vibrating with massive energy][/i] Oompa Loompa doompety doot, 🥁🦧 The critics are screaming, the logic is moot! From anime stars to a dummy thicc snake, This rigid collision is a massive mistake! Oompa Loompa doompety dass, 🏎️🌪️ Not even the Captains can save all this mass! The Red Devil glitches, Randall is mad, The worst physics sandbox that you've ever had! 💀🕳️ [b]EPIC VOICE GUY:[/b] [i][Shouting over the noise of the studio completely deteriorating][/i] Thank you! Yes! Experience a game so unyielding, it transforms a colorful paradise into a lesson in structural despair! Where the final boss isn't an enemy, but the very floor you walk on! [h2]STARRING: 🎬🎭[/h2] [b]False Gass-vertising[/b] 🤥🎈 [b]The Concrete Trampoline[/b] 🪨🤸♂️ [b]The Invisible Engineering Threat[/b] 🪓📐 [b]Punishing Hitbox Rigidity[/b] 🧱👾 [b]The Dead Stop System[/b] 🛑📉 [b]Static Platform Clipping Errors[/b] 💾🤖 [b]Microscopic Angular Flaws[/b] 🔍📐 [b]And Total Geometric Despair[/b] 🧠🌀 [b]THE RED DEVIL FROM COW AND CHICKEN:[/b] [i][Slapping his own hips rhythmically like a bongo drum][/i] Absolute perfection! "Gass-vertising" passes the filter with flying colors! Keep it shaking, fat boy! We have a review to finish! Bye-bye now! 📢💥 [h2]HONEST TITLE: 📜✍️[/h2] [h1]REAR ENDED: TENSION SIMULATOR 🍑🗜️👺[/h1]
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Hours played at review time, across 22 reviews with recorded playtime.
Multiplayer does work, its just tricky. Core gameplay is fun for about 10 mins. Didn't have any issue with the bouncing, even has jiggle physics, might play again.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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