This is basically the sound of 1984 Data East karate distilled into a tiny package. Karate Champ's original arcade audio is mostly quick stings and voice clips, but the Oretachi PS2 re-release threw in some bonus arrangements that actually go places.
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The Karate-do HipHop eJay Remix takes those sparse original sounds and drops them over a beat that feels like it wandered in from a late-night lo-fi session. Then the Super Sweep arrangement goes full studio polish on it.
The original stuff though. Those crisp "Ippon!" calls and the crowd cheers still hit different after all these years. Worth it for anyone who spent quarters perfecting reverse roundhouse kicks at the arcade.