Play Undercover Cops Gaiden - Hakaishin Garumaa (Japan) Online

Chunky sprites, weighty punches—this pocket-sized brawler throws waves of thugs at you until the screen’s a glorious mess of pixelated chaos. That satisfying arcade crunch, just smaller and meaner.

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Game Overview

Undercover Cops Gaiden on the Game Boy is one of those weird little spin-offs that somehow works. You’re basically playing a miniaturized version of the arcade brawler—same grimy city, same thugs to punch into next week, but now it fits in your pocket. The sprites are chunky, the hits feel weighty, and yeah, you’ll still get ganged up on if you’re not careful.

It’s got that classic ‘90s arcade DNA—simple controls (jump, punch, repeat), but enemies don’t just stand there waiting to get knocked out. They swarm you, and the screen gets chaotic in the best way. The pixel art’s surprisingly detailed for a Game Boy game, especially when your character winds up for a big uppercut. Not gonna lie, the difficulty’s brutal by today’s standards, but that just makes clearing a stage feel like an actual victory. If you’ve got a soft spot for forgotten brawlers, this one’s a solid time capsule.