Initializing, please wait a moment

Boing Cat Platformer is a free browser auto-run platformer: press Space (or a gamepad button) to time jumps over spikes and gaps while your cat runs forward on its own, across three tile-built levels to a finish flag held by a duck friend. About ~130 KB after Play, no install, no account.

Want an endless high-score chase instead? Try Pixel Spike Run.

BOING CAT

Time Space-bar jumps over spikes and gaps in three tile-built levels. From BoingKat by Make Classic Games (MIT, JS13K). About ~130 KB downloads once when you press Play.

Keyboard: Space jumps (the cat auto-runs forward). Gamepad: bottom face button jumps. Best with a keyboard or gamepad.

Press Play to load the game.
Session-only play - no save data in this build.

Welcome to Boing Cat Platformer - a free browser auto-run platformer you can play without an account or install. Press Play to load the ~130 KB canvas engine in a same-origin iframe, then press Space (or a gamepad button) on the title screen to start. Your cat runs forward on its own; time each Space press to hop over spikes and gaps across three tile-built levels. Reach the flag held by a duck friend to clear a level, then clear all three for a final score screen. Privacy note: nothing leaves this device except the initial page and game files from this site. For more free browser games, open the games hub.

See all Back to Games →

Related tools:

  • Snake Classic - Snake Classic - Press an arrow key (or swipe on a phone) and the game starts instantly - eat the
  • Retro Tank Battle - Retro Tank Battle - Drive your tank with the arrows or WASD, fire with Space, and clear the wave of
  • Garden Defense - Garden Defense - Pick a defender card - Shooter (100 energy), Battery (50, makes more energy), or
  • Voxel World Builder - Voxel World Builder - a free browser voxel sandbox: infinite terrain, six biomes, caves and ores,
  • Sky Gates Flight - Sky Gates Flight - Fly a little plane over the ocean and steer through the gates - green ones add
  • City Time Machine 3D - City Time Machine 3D - Drag the 1945-2055 timeline and watch one city block's buildings, vehicles,
  • 2048 Game - Merge the Numbers Puzzle - 2048 Game - Merge the Numbers Puzzle - Slide the numbered tiles with the arrow keys, WASD, or a
  • City Drive Open World 3D - City Drive Open World 3D - a free open-world driving game in the browser: a seeded neon night city
  • Retro Highway Racer - Retro Highway Racer - a free lo-fi driving game in the browser: steer a randomly generated highway,
  • Hover Racing - Hover Racing - a free anti-gravity racing game in the browser: pilot a hover ship down a neon 3D
  • Retro Arcade Shooter - Retro Arcade Shooter - a free lo-fi browser shooter: blast robot spiders through a dark server
  • Marble Maze - Marble Maze - a free 3D maze puzzle in the browser: roll a ball through a procedurally-generated

Tags: #games

Loading reviews...

Frequently Asked Questions

What is Boing Cat Platformer?

An auto-run platformer. Your cat moves forward on its own across three tile-built levels; press Space (or a gamepad button) to time jumps over spikes and gaps and reach the flag held by a duck friend.

How do I control it?

Space jumps; the cat runs forward automatically. A connected gamepad's bottom face button also jumps. Press Space again on Game Over, a level win screen, or the final screen to continue.

What is the goal?

Clear three levels by reaching each level's end flag. Score adds roughly one point per ten pixels traveled; the run ends with a final score after level three.

Is progress saved?

This build is session-only. There is no save data. Closing the tab resets progress and score.

How big is the download?

About ~130 KB of HTML, JavaScript, and two small PNG images after you press Play. The browser caches it for later visits on the same device.

Does it work on a phone?

The page loads on mobile, but jump timing needs a keyboard Space key or a connected gamepad; a touch button is not included in this build. Desktop or laptop is the recommended experience.

Is this open source?

Yes. Adapted from BoingKat by Zerasul and Banus10 (Make Classic Games, js13kGames 2025) under the MIT license, built with the Kontra.js engine and ZzFX audio (both MIT). This site build adds noindex on the iframe, rebrands the title screen to Boing Cat, converts the three level files to plain JavaScript modules, and ships LICENSE plus CREDITS next to the engine.