This game is nearly perfect! The art, audio, game feel, and pacing were great! The only thing holding this back is that some of levels require slightly too much precision and the lack of checkpoint can be pretty demotivating when you die at the end of a level. Love everything else though, the three characters each feel amazing to use!
Also while the time slow effects while using the anvil make it feel powerful and weighty, they also make it unnecessarily difficult to time switching to other modes when falling, mostly for the section where you turn into the anvil above a laser.