How do I jump over the blue ones? It doesn't seem to let me... Nice AI though!

Nice game! If you have a search around you'll find a few other breakout remakes on here you could pinch some ideas from, there's a space themed one that's rather good, and I did one a while back (which is more basic and what the space themed one was built on.)] One fairly standard "feature" that you might want to look at next is the ability for the angle and speed of the bounce of the ball to change based on where it hits the paddle - if you have a look at some of the others you'll see what I mean :-)

Hmm, I'm sure it just got rid of the wrong face... it deleted the one that was hopping instead of the one that was being hopped over! I think I could've got down to 2 if it'd got rid of the right one, as it is I'm still stuck on 5!