Play Oni II : Innin Densetsu Online
Tiny ninja with big moves—dodge telegraphed attacks, chain mid-air combos, and unlock occult techniques that feel like cheating. That flickering torchlight and smoke-teleporting boss? Pure Game Boy magic.

Oni II: Innin Densetsu was a Japan-only Game Boy release from developer/publisher Athena. It arrived late in the system's life, a time when developers were still finding clever ways to push the hardware, often with deeper, more complex action games.
You control a small ninja navigating a series of side-scrolling stages, clearing each screen of enemies before moving to the next. Your main objective is to defeat the demonic forces threatening your village, which involves methodical exploration, finding keys to unlock doors, and battling screen-filling bosses. Signature mechanics include a double jump for navigating tricky platforms and a screen-clearing special attack that consumes a portion of your health bar. The pacing is deliberate, and the difficulty is significant, demanding precise jumps and careful enemy management. It feels like a condensed, challenging test of your timing and patience.

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