This is an incredibly well polished game, you'll make a lot of money.
Maybe it plays better with a controller, but I found it a little annoying I couldn't select stuff in the menus with A or D. It broke the game flow for me every time.
I can see it being really fun once you master it, but it's really fast to start with and hard to precisely jump like I want to, would be interesting if you implemented a slowed time mode just to relax it a bit. Would be an easy difficulty implementation imo.
Footstep sounds got a little annoying, maybe different sounds per level could be fun, it'd be easy to make each level feel a little more distinct with color and texture changes, don't be afraid to evolve the style a bit and stretch it in new directions.
I found the level endings opaque; why do they seem to end randomly? I want to fill in the entire board, let me do it, my OCD is begging you.
I was also never able to clear a stage without an enemy getting me once. Probably just a skill issue because I've never played it, but I found them very aggressive in the first few stages. It'd be nice to have a chill mode without enemies too because I'd legit just try to fill the board without repeat tiles as a challenge puzzle. You also don't make it clear in the tutorial that stepping on already cleared tiles will lower your stats, you only mention it in regards to the bonus mode.