Needs music, not a short sound effect, without a glitch during loop. Turning sound off should be more obvious. Ball needs to speed up during each level/death to increase difficulty, and not let you get bored waiting. Knight/horse is death? Try a jolly roger instead. And a shield equals lasers? I don't get that. The "fireball" powerup should destroy the metal bricks as well, but destroying all metal should not be needed to complete level. Gave up there because it took waaaaay too long.