I love the style and music!
Level 9-10 music was especially good in my opinion.
Gameplay wise, I initially thought the character was too slow, but I got use to it and I believe he is the correct speed for this game.
-The enemies were great! I really love the boulder guy on Level 7 (I believe that was the level at least). I wish there were more levels so that he could be utilized more.
-I'm glad that you don't kill the forest creatures but rather knock them unconscious.
- The level design is great, especially for the later levels.
PS: Level 12, even on normal, was ridiculous. For some reason I played this game again on hard mode anyway, lol.