Sky Ruins

The promptBuild 'Sky Ruins', a 2D pixel-art platformer game in one HTML file: a small robot hero runs and jumps across floating autumn islands under a bright sky, collects gold coins, stomps or dodges crab enemies and reaches the flag. Tight controls (coyote time, jump buffering, variable jump height), parallax clouds, 3 hand-designed levels that ramp up, coin counter, lives, a checkpoint, start / pause / game-over / win screens, chiptune sound effects with WebAudio. Draw every sprite procedurally as canvas pixel art. Arrow keys or WASD + Space, with on-screen touch buttons on phones.