This was a surprisingly engaging game. It was fast-paced, and I liked the retro look to it. My only complaint is that it seems a bit glitchy. I couldn't make it past Stage 3 because halfway through the spaceship flight, my character clipped through the bottom of the ship to his death, even though I refilled my fire along the way. This happened twice, and I got a game over. Other than that, though, it's a pretty good game.