A little more control over the jump would be nice. It was annoying to have to jump to max height each time and wind up colliding with one of the closely packed meteors. Also, having to get 15 coins for the "secret" was insanely difficult and was infuriating to see that the one upgrade in the game is actually useless because of the x key. The last thing is that smiley face... It's eyes pierce my soul.