> That game used an SNES DSP1B? I didn't think any arcade games did and I asked LN and > he said it's possible a proto/early Super Mario World did and that's probably it.
No, it uses a uPD77c25 DSP (which is the same part as the DSP1B except dumpable in a regular BP Micro programmer). That said, it doesn't actually appear to be used by the game right now (!)