I like the double jump, art, and music. However, those stupid wood trolls get me every time! I think adding different difficulty levels would be good. Maybe making the wood trolls slower on easier levels for the less talented gamers, shorter spaces between hills, etc. I get easily frustrated though, so this may not be an issue for everyone. I think a different level intro music would be good too. Not a big fan of the scratchy sounds. A reduced death sequence would be great too. I wasted a lot of time dying.