This is a cool thing you've put together - I like the core tension of the recoil presenting as big a danger to you as the enemies themselves. It's pretty clear what the purpose of the game is and how you're meant to interact with it.
I think broadly I would suggest two areas of improvement. The first would be controls, I had trouble moving around and aiming the way I wanted to, overall the friction felt very low. Second is a bit of general communication - a lot of things happened that I wasn't exactly sure what it meant. I think if a enemy hits you, you lose your little jump pad? My guess is to encourage using recoil to jump, but I'm not sure. Also whether enemies were red or green was confusing to me.
But really this is a cool thing! You have a lot of feedback and nothing here is fundamentally wrong, just needs some overall cleanup, good work!