Pretty cool idea - sadly the implementation feels a little clunky. A few points:
1. The bullets have to be big enough so you can grab them easily, yet small enough so that multiples can be on the screen so that you have to actually use the slowmo. I think they are too big right now.
2. The pacing is too slow. The first minute I can just stand in the middle , moving slidely to the side to dodge . I wanna use that slowmo to do cool things not watch bullets fly-by :(
3. Why can't I use bullets as shields? I really want to drag bullets into other bullets to destroy them - might not be realistic, but could be fun.
4. Only bullets on screen and the player are slowed down. So... bullets that spawn while you are in SlowMotion come at you at normal speed while you are slow.
Quite a lot of points I know - but I really like the concept so I took my time to dig a little for the reasons it didn't work for me.
Visuals and audio are great though. Maybe you can fix 3 and 4 - that would make the game so much better :)