Pure mid-2000s anime energy cranked to eleven. Tetsuwan Gacchu! is a 2005 Windows visual novel with vocal tracks that go absurdly hard for what it is. The full chorus version of the opening theme hits with this hyperactive J-pop punch that refuses to slow down.
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"Peach Dance" and "carnival step" bring bouncy, playful instrumentation that feels like a festival episode soundtrack. Then "Blue Moon" shifts into something more mellow and sincere, catching you off guard. "search and destroy" though.
Way more intense than you'd expect from this kind of game. The mix of vocal tracks and BGM gives it real variety. If you're into chaotic Japanese PC game soundtracks from that era, this is exactly that vibe.