Nice game, enjoed it! :D
Level 6 took me a bit because I was not seeing the mirror, and it was even animated! Maybe presenting that mechanic in a simpler level would have helped.
The lack of a key to restart (In a lot of puzzles is R) was a little bit frustrating, also considering how far is the P key from the normal WASD hand position.
The graphic was good, but overshadowed by the rotating gun animation! ahahah
The ending level was super! A great theme-fitting game!
PS: We made a puzzle platformer too I you want to take a look! :)