Very mind-bending, fun game. Lot to keep track of, but it's introduced at a nice pace.
Cute graphics, thematically consistent. I like the faces the slimes make when you win.
Because of the additive movement, moving diagonally is faster, which adds another thing to keep track of on top of the already mentally-taxing multiple controls. Not a big deal, but once you notice it it's hard not to try to move diagonally all the time.