very cool! really original and unique.
also, there was a bug on one screen:
which now makes me curious what you made this game in
Yeah, I added the closeness points because it gives the player an incentive to not just sit back and shoot the enemies from afar, and instead go straight in and kill them close-up. With the caps locks thing, with the way Processing (the thing I used to make this) works 'a' and 'A' are considered different things. I could fix it, but I don't see it as big enough of an issue. Anyways, thank you for playing!