Love the look of the game and the lighting effects. This game could really benefit from some audio. Also It would be interesting if more enemies spawn in over time. You could probably keep playing this game forever when each bullet one shots an enemy and there are only 3 of them. Also could probably add to the gameplay if the enemies harmed the player in some way. Maybe stun him instead of kill him. Still for a little over 3 hours the game looks great and plays well.