I enjoyed, but my experience mostly consisted of firing randomly and getting lucky, usually unexpectedly
I like having 2 shots + resetting with spacebar, especially with being able to bounce the shots off of each other, although I never felt like I needed to use the mechanic to complete a level
When pausing/unpausing, I think another instance of the soundtrack began to play, which was a little annoying
Some of the level select options are incorrect, I think. 6 and 7 lead to the same level and one level (8, I think) cannot be selected at all; only reached after beating level 7.
The spinny thing in level 8(?) pushes the shot through the wall often, although I guess that isn't really a problem since you can just restart
I think there should be a delay after completing a level before moving on to the next; I often completed a level without realizing it and I think it would be more satisfying the winning shot, maybe a short replay of its total movement.
Some part of me also wants to see some way to have a massive amount of shots bouncing around simultaneously, although I'm not sure what mechanic purpose this would have
Good game,