Excellent
I have to say that this game is killer. of the various defence games ive played this ranks among my favorites. although some extra added depth and maybe an adjustable difficulty could add to it but other than that it was sweet, the animations were pretty smooth, the weapons were nicely balanced and varied, (and i especially liked the last one :) the sound effects were nice too although maybe a little music wouldve been nice. overall an excellent game. Cheers!