Arrows keys to move. Space bar to fire. In case it's not obvious the weak point for the boss in the first phase is the laser cannons.
This was a collaboration between me and another user for class. First attempt at making a game like this so it's not very long at the moment. Feel free to remix if you like it. If the boss spawns when you start the game for some reason, just click the flag again and it should go away.
