Love the game, its absolutely amazing and I love the idea and style. The only problem is for some reason its really laggy on my computer. I can't seem to get it to run right and always end up crashing because of massive lag aroudn turns. Maybe an even lower visual setting? A minimalistic mode for old comps like mine?
Great game. I love the beats and its instantly become a classic in my mind. Maybe make some harder levels with some more complicated rhythms the music was absolutely beautiful. You could do what Portal did and offer more difficult "Advanced" optional levels which are just excruciatingly difficult (if you haven't already learned the mechanics and concepts) rehashes of previous levels. Either way. Great game.
Theres a bit of a glitch with wall defense. If you just klick "Assign All" and nothing else, it will assign all people, but leave them available for other things. You can even have dead people guarding your walls.