Nice little game, the art is quite charming but there are some little problems with the boss mechanics.
The main one is the second boss, it's good that it teaches players how to dash, but besides that it is really easy and the rocket is a joke, because you always destroy it right after he launches it. When I picked the rocket after the boss it was as weak as in the actual bossfight but now it sometimes were bugging out and phased through the monke.
But besides that - really nice game!