Nice I've got to the second level and died almost immediately.
I'm not entirely sure what the mechanics is and what should I pay attention as a player - which enemies are how much powerful, how much hp I have and so on. Some explanation/tutorial/visual-clue might help; or... I need to play a couple more games to figure it on my own - who knows?
Otherwise: keep up the good work!
Otherwise: commercial ads in a school project?! I might consider going back to school if it become not only fun and interesting but also net-positive financially XD.