I enjoyed this game. However, there are a few things I would have changed.
(1) Epic waves are cool, but bosses are also fun.
(2) I liked your choice of music, it suited the game, but it could use some variety.
(3) I do love movie quotes and although I recognised most of them, there were some I could not place. In this, I would reference your source. First, it is always good to acknowledge where it came from (to avoid getting sued and all) and it's good for players like me who just want to know things.
Apart from that, it was a nice solid game.