I remember a long time ago, I accidentally stumbled across an Action Replay code that made the game have 'zero gravity' for Sonic. Basically whenever you flipped Sonic or moved the D-pad, Sonic would continue moving slowly in that direction until he hit something. You could use this to get past the badniks that blocked off certain areas until you'd collected emeralds - the closest thing to debug mode I've ever seen on Spinball. However, I lost the notebook where I wrote all the codes down, and to this day have not been able to recreate it! All I remember is that it was an 'FF' code, I.e. it locked a certain RAM value. If any of you have in-depth knowledge of how the Spinball engine works, could you try and find a code that does this? I think a good starting point would be to investigate what the 'normal' and 'fast' options change; gravity, max speed etc.