Built by four free models — gameplay & sound: ChatGPT, level & visuals: Gemini, boss & juice: Qwen — combined by Gemini (Google AI Studio) under the Bounded Agent Harness. The raw merge failed verification; after two bounded harness repairs it passes the full acceptance suite 23/23.
One raw prompt in. A whole game out. See exactly how it was made →
You are Bit, a little agent bot. Run, roll, and jump through the Prompt Hills. Collect the ★ stars, stomp the glitch bugs, find the two secrets, and shut down the rogue Unbounded Core at the end.
Easy on purpose: 5 hearts, checkpoints everywhere, and a fall never costs you the run.
The tricks, honestly: three-plus layers of parallax scrolling, a tile-based level, momentum running, a rolling spin move, springs, a loop-the-loop, and sprites drawn entirely in code. The music is an original chiptune loop synthesized live with WebAudio — there are no audio files and no image files in this game at all.
First human play-through verdict: a little too hard — and possibly soft-blocked somewhere (a spot where progress can stall without a crash). That question is under investigation, not settled. A Bounded Agent Harness research pass has been dispatched to make the call — soft block vs difficulty curve — before any design changes (the research tool returned its labelled crawl fallback: no game-design pack exists yet). Planned changes once the research lands: adjust Bit's starting speed, and add a second level with an elevator, fireball powerups along Bit's path, and a locked-screen boss that spawns minions.