Ya just the one wave for now. I still trying to figure out layouts for selected towers. So you can have more options for towers. Right now i have towers able to shoot at closest target or weakest target but haven't implemented a way of changing it.

Well that was little tricky. First i had it so that the blue block would go up and down using the gravity, but i couldn't get it to scroll right when you go up and down. So instead of having gravity applying to the blue square i made it so that gravity does not affect the blue square but inverses gravity and applies it to everything else in the world.

HA particals are awesome!!! lol and i got the idea for this game from a very random game i found online at school years ago..it was on one of those game sites that no one has ever heard about lol but it was a very addicting game