This is pretty cool. You're making really great progress with this stuff! I think the biggest bug I'm seeing with it right now is that its still pretty shaky for some reason on my Windows 10 laptop. One idea would be to make it so the blocks get destroyed when you shoot them. You could have a countdown timer to keep score of how many blocks you shoot in the allotted time given. That way it adds a competitive element to it. Just an idea. Anyways its really great, I showed Rob and he was impressed too.