I'm just wondering... is it possible to at least emulate the sound ROM for Cool Riders? I do know that it has its own unique hardware. And does anybody know if H1's sound chip is its own or if it's an SCSP?

It's an SCSP, and there's not a dedicated sound ROM - the program and songs are downloaded, like ST-V. Presumably someone could rip .SSFs for AO out of it sometime though.

Sort of surprising that it's an SCSP. It, to me, sounds mostly like MultiPCM (X2).

Outrunners (MultiPCM) vs. Cool Riders (SCSP)

Flawless victoly to Cool Riders.

Yeah, Cool Riders definitely sounds better in that comparison