I really liked the art! The bullet bounce felt awesome! I loved the intuitiveness of your game. The player movement and animations did not look or feel great. The audio got a bit annoying. I began and spammed the fire button only to realize I killed my self. My bullets went off screen and then came back on screen; I thought it was enemies shooting me. My biggest enemy was myself/my own gun. Overall good job, and keep it up!
EDIT: I do not think your game was one-bit. If you used dithering please tell me so I can change my bitness rating category.