The arcade version of Tekken 3's soundtrack is raw 1997 Namco System 12 hardware and it goes way harder than it needed to. Every character theme sounds like it was produced for a standalone electronic album. Jin Kazama's arcade theme has this tense, rolling rhythm that the PS1 version totally reimagined, and honestly both versions rule for different reasons.
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Eddy Gordo's track is pure breakbeat energy that matched the flashy capoeira moveset perfectly. Heihachi's theme carries this heavy, almost oppressive weight that tells you exactly what kind of boss fight you're walking into.
The Hidden Characters track though. That eerie, stripped-back vibe still gets me. If you only know Tekken 3 from the PlayStation port, the arcade score is a whole different animal worth hearing.