Cool concept! Limiting both movement and shooting by the same system is a pretty neat idea and implementation of the theme. I liked the variety of enemies and bullet patterns. I would recommend adding a checkpoint system, as starting over from the beginning is a little frustrating. I also think you could play around with the balance of how large the jump movement is to how much energy it takes up. Right now, with how short the movement is, it is pretty difficult to maneuver through some of the bullet gaps. I also think the game would benefit from a progression system to upgrade your abilities over time. But for a jam game, this is nice and solid. Good work!