fun, chill game.the art works really well with the theme.

Very nice flappy clone.  I think you got a great balance of flying and falling here.  Like Michael said, I'd give more feedback on the acorns, and perhaps some kind of death animation when you run into a tree but I can understand you wouldn't have time for that in 3 hours.

Yep its a flappy bird not much i can say. 

More feedback like simple sparkles when you pick up an oak might help make the game more interesting.