Finished the game. Was pleasantly surprised, it's a well realized puzzle game. The mechanics are intuitive after the tutorial and the puzzles ramped up at a good pace. The gun return animation looks nice and serves as a reload time which is neat. The purchase system felt a bit weird to have, but I suppose it works as a way to control the safety net against combat if a player needs it. At first I was confused why the eye ropes could stop the player, though I realized it's intended in a spot or two to act as a barrier. Though that may be a little too weird to keep, since it can move some people may throw their head at it.
Accidently went to menu when trying to close the vending machine, my fault but I'm used to ESC closing things. One time I rode a bullet diagonally into the corner of the ceiling and got my head stuck in there, shooting down a bit I managed to get out. The only other negative thing is the visuals, they work well but I imagine it's a little too programmer art for the average puzzle game audience. Though I imagine you are well aware.
Good job, looking forward to the game next time.