Taito's YM2610 chip doing what it does best: making you floor the gas pedal with your ears. Special Criminal Investigation (the Chase H.Q. sequel) runs its FM synth engine hot across five stages of high-speed pursuit music that never stops feeling urgent.
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The Main Theme is this propulsive, brass-flavored lead melody over driving percussion that practically invented the arcade cop-chase soundtrack. "Bay Side" shifts gears into something almost funky before the round pushes you forward again.
"Helicopter Pursuit" cranks the tension with ascending phrases that mirror the chaos on screen. The whole thing is tightly paced, every track built to keep quarters flowing. If you grew up feeding credits into Taito racing cabinets, this is the FM synth adrenaline shot you remember.