Very pretty.
It got probably do with some sound effects to make the shooting a bit more satisfying.
Not entirely sure what the lines are. I assume they are meant to be lazers, but they never seem to do much? Maybe increase the damage on the bullets and the lazer lines a little. it might make the shots feel a little more impactful.
All in all, a decent little game.
PS: Big fan of the little bunny thing in the corner that ocassionally pops up