Very addictive and impressive for a first project, especially when I think back about my first game lol.
I like that there is stuff to find and interact with. (Haven't played through all stages yet, so I hope there's new stuff in all stages)
There was some heavy lag going on at about 9 minutes in, maybe I just didn't kill the enemies fast enough >:)
Also I feel bad about beating up all those birds, the art on those was so beautiful. Didn't mind the caterpillars though.
EDIT: One more thing I would like to see is a lot more JUICE for attack impacts, collecting EXP, leveling up, etc...