Pretty good entry!
-in terms of challenge level, the games is pretty challenging, but not impossible. adding a tutorial or maybe some hints would make it less challenging without necessarily ruining the difficult aspect to it.
-The artwork is charming! so is the narrative, the Frog boss is well designed and introducing the items launching at you mechanic earlier is smart, i like it.
- my only real gripe is the lack of audio. i know its something thats usually left out till the end, but its still very crucial. without it the atmosphere feels quite bland.
all in all this a good game, but it just needs that little bit more. 4/5.