Cant Play Chu Chu Rocket

Hey,

im using NullDC 1.0.4 and i cant get past the Sega splashscreen.

This are the messages in the console:
"not implemented optcode : 8c00 : unknown opcode @8CE00962"

I tried to disable Dynarec, but this changed nothing.
Also i changed the region, with no effect.

The Game is in CDI format. Selfripped from Original CD with Discjuggler.

Hope someone can help.