This is a great game. I can tell it is very Contra inspired and that is a compliment. The movement is unique in my opinion, and fun! The only thing I can say I didn't like is that there were no checkpoints, but I understand why you did that. It is just frustrating when trying to play a bunch of these Jam games because I don't want to spend to long on it. I think the game over, start at the beginning thing is something about Contra that does not age as well as the rest of the game, so maybe consider adding an easy mode. Not that you have to, that is just a suggestion. Great job!