File 1 68%: Practice W5 with the coloured gems not collected

File 2 30%: Practice without turbo run unlocked - this powerup can mess up super sliding strats

File 3 34%: Same as File 2 but with N-Trance defeated and turbo run unlocked. Could make this a personal save file.

File 4 101%: Self-Explanatory. Everything unlocked, practice anything. Beware of turbo run as it can desync your super slide setups