I was actually surprised at how much I enjoyed this. I appreciated how unique it was. I still can't remember the name of the game those green guys come from. While not a masterpiece, it still comes off as good to me. What kept it from being great was how the controls were off. I don't understand how the weapon style works.
The music was pretty good too. I think it's funny how you're transported back to the beginning of the level after dying. I should have paid attention to how many lives I had. It just had a good spirit to it. It's also easy to understand.