Okay, hit "screamer" instead of Power Metal and it freaked me the hell out. It's a good thing I'm in a half-dazed stupor all day, or else I might have, like... I don't know, get goose bumps or something. =/
The Gun Tower doesn't have area of effect, though. the DD towers just leave a blob in the path and whoever walks into it gets hurt. Still, I agree that they aren't worth the money.
Same problems as the original, you start building up and then for no reason your tower starts swaying side to side. 3/5 ONLY for the other flowery crap added to the game like different levels and goals.
3/5
Randomly the game will pause. Annoying as hell. Unresponsive controls and also collision detection is weird, as in, you can fall through tiles and junk if you twist at a time that isn't exactly perfect.