Such negativity! Coding these games are not easy, i've tried myself :( And yeah, you need to get some sort of end game sorted. I know it makes all your turrets dissapear but I want a "I WIN" screen :P
Very nice for a beta, defo get some sound in and speed up the initial waves, its slow at the start.
Also, gief Insane mode, completed easy 5 times! :P
5/5 for effort, keep up the good work
TMS