Really fun, but some pretty easy things to exploit, first boss just hold just and bash S after he hangs off the ceiling. 2nd boss just hide in the bottom right corner and it's impossible for him to hit you even if he comes directly at you. Third boss dodge first two attacks hold A and bash S on top of him.
Unless the secret medal is not taking damage, it's not really worth taking the time to save yourself one or two hits.
The controls were really nice, fast, smooth animation, it felt fun from teh get go.