Cute little game! The music was really good and the style was simple but good. I think you should have made the health regenerate much faster; it was frustrating just sitting there while I waited for it to fill up, because anything other than full was basically suicide for some of the "activities" I needed to do.
Ran into one bug where the green guy teleported back to the start even though I didn't hit a spike or anything. Unfortunately I didn't finish the game because I don't want to redo the tedious sections.