am I stupid, or is this game particularly difficult? I can't seem to get past the 4th wave in lvl 1!!! Oh, and it would be nice if we had a second or two to think, before the 1st wave comes out!
This is too easy. Just pump out large cannons and let them do the rest. Even on hard it's ridiculously easy. It has great potential though. A campaign, increased difficulty and you've got a winner!