Another video about Sonic Advance. By hacking the memory, I can get the sound test selection past the limit of 39. This mostly has empty tracks, sound effects, and duplicates (#200 crashed the game!) but there are also three tracks which, to the best of my knowledge, are not used anywhere in the game. Wondering why I go backwards? It's because if I push Right, it will reset to 1. I hit Left, which decrements it.