i liked the feel, the art style, and the music.  Controlling 2 spotlights at the same time (one with WASD and the other with the arrows) was confusing at first, but a lot of fun to learn to do.  I am not sure i ever understood what i was supposed to do.  switching to the correct, or wrong, color - highlight or avoid the dancers - it all seemed to take my health away the same (if that was even health?).  still fun though.  

The visuals are pretty great. I like the scuffed look of the instructions and the way the dancers move. The controls were a bit obscure, though! Perhaps an interactive tutorial might have helped.