I see you guys like robots, lasers, and absurdly difficult gameplay just as much as I do and for that I tip my hat to you.
The gameplay loop is satisfying to pull off and the music fits really well.
However I found that when I started I was unsure whether I had bullet time on. So maybe particles or some other kind of audio / visual feedback that might help the player understand that they're using bullet time.
I was also a bit confused about what I was actually supposed to be doing at the start so possibly a more in depth tutorial or even just a quick text box at the start with "alright shoot all the robots, dont get lasered and also crouching makes the concept of time break" kind of thing written in it.
I would also recommend that you make the time it takes the player to restart the level be as close to instant as possible. As the player just wants to retry after they get a face full of lasers not wait for the screen to cut to black but that's just my design philosophy.
All in all great game! Hope you guys keep developing it after the jam is over! : )