Wow, very cool game! graphics look really good and the idea is quite fun, I like the little devil that feeds the big beast random stuff, sometimes he's helpful, sometimes he's not. The only thing I didn't quite like are the controls. I can't quite put my finger on why, but they just feel a bit off, especially the picking up/throwing mechanic.
but overall very well done, especially for only 3 days! Maybe you'll check out my game too? ;)