1. I don't know. 2. Under GameModeArray, you see that the Credits are $1C. I think, if you put a check if LZ3, set game mode to Credits, it will help you, i hope... EDIT: FOR ME NOW: Since yesterday, everytime i have a 1-up monitor, 100 rings, or when i playing the extra life jingle (music88.bin), my hack got an Illegal instruction. I have replaced the file file with one from a clean disassembly, but it's the same. EDIT2: FIXED! It's an error from me! I have doing this guide: http://info.sonicretro.org/SCHG_How-to:Extend_Music_Slots_in_Sonic_1 And i have put a routine BELOW instead of ABOVE.