ughhh
Many things on Newgrounds have given me a headache, but never before something on the front page.
I have to say that I am disappointed with nearly every facet of this game. The graphics are nothing special, and the music is less than pleasing. The pace of the game moved so slow, but in a way that increasing the speed didn't help at all. Heck, even Runescape is more exciting than this!
However, I do think that this is a pretty good idea. Try adding more engaging concepts like upgrades or special area-of-effect spells. If you want an idea of what a fun tower defense/strategy game is like, try Portal Defense 2.