I also recommend a couple changes to the Wild House (world 3 bonus level): have the doors drop players directly on the sign so they can read the rules BEFORE doing trial-and-error to figure out what they are, and add a sentence to the sign in the first room to let players know they can still bounce by attacking instead of having to rely solely on dashing (because attack-bouncing is still required despite the sign saying players can "only dash").
EDIT: Also, please move the wall at the end of the final dash-only room one unit left so that players can't dash past the door and get stuck.