Hi! I'm new to the scene. Not sure if these two skips have been documented, but I'll leave them here, hope it helps!

The first one is an improvement to The Jungle skip to avoid shell jumping. Instead you can use damage boost to skip the fight section. It also improves the strat to get a shell, you get a green shell and skip the platform section instead of activating the platform to get the red shell.

The second one is a damage boost strat in the Bomb Factory. Nothing too crazy but thought it was worth posting.