The idea was great, but it could have been done better. I was annoyed at how I couldn't always hit the enemies. It was way too short. What's the point in making a game with only one level? You had little mobility. Maybe I just need to get used to these controls.
I appreciate how it's unique. I don't think you can even jump on these guys. It's just weird for a Mario game. You should have infinite ammo. Well, it is just one level.