I agree with chenbot when he says it is relaxing and entertaining. The game is great as it is, but something you could add is maybe a few different colors, each giving different amounts of points. This would add to the visual effect and make the game more enjoyable. 5/5!
"Shoot your way through alien invaders in this action platformer!" I thought they were zombies? Lol. I agree with the previous comments about the need for different equipment for different characters. I think also that the weapons should be more expensive. 4/5.
Huh?