Block Dodger 2: The Blockening alpha

Arrow Keys move and space bar shrinks This is my first game in pygame there's still a bunch of problems that I'm still trying to solve: -Touching the black block should make the black block disappear and award the player with 500 points, however both things just disappear. -The level counter only seems to paste things on top of each other instead of blitting a new text set. -Hitting space bar just crashes the program and I'm not sure how I can get it to make the player shrink. Can anyone help?