Nice game :) I really liked the aesthetic of it, especially those backgrounds. The music was good enough to keep me engaged, and i liked the way the the level progressed, more and more difficult AI came at you with more civilians to save in each level, i also adored the transition between levels.
My only complaint are the controls, i found it really hard to hit left, every other directions it was snappy and quick, this was fine in earlier levels but became really frustrating in the later levels.
All in all, a REALLY REALLY good game.