Play Kinin Koumaroku Oni (Japan) Online
You control a tiny, scowling oni smashing through levels with reckless ground pounds and chaotic jumps—like a horned wrecking ball with attitude. The deceptively simple platforming keeps you dodging traps while the little demon grumbles at everything.

Kinin Koumaroku Oni is a Japan-exclusive Game Boy release from 1990, developed by A-Wave and published by Irem. It arrived during the handheld's early years, a time when many developers were still exploring what the small screen could do with action and platforming games.
You control a small, frowning oni who navigates side-scrolling stages by jumping on platforms and defeating enemies with a ground pound attack. The main goal is to clear each stage by reaching the exit, often while collecting scattered items to increase your score. Signature mechanics include screen-by-screen progression, where each new screen loads separately, and the ability to destroy certain blocks and enemies with a well-timed slam. The pacing is brisk, and the difficulty can be unforgiving, with precise jumps required to avoid pitfalls and enemies. It feels like guiding a stubborn, miniature force of nature through a compact, hazardous world.

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