I finished the game and this was a lot of fun! It is a very simple concept :D! Love the idea of throwing milk with an arc and you gun use a gun to shoot straight. Thought I tried to do a milk only run but sometimes just wanted to use the gun hehe.
Some feedback I would say make it more visible or known you are dropping the milk bottle. I had to read through the comments here how to get rid of the gun.
Overall I love the art style and parallax effect on the background and the simple concept of a boy vs mafia.