Really liked this! I love games that implement the scroll wheel. My one suggestion would be to have some sort of indication of where the player will be facing if they use the side button or right click. It could be just an arrow pointing backwards from the player, I found that I didn't want to use the rotate 180/90 because I didn't have a great sense of where I'd be aiming and it was a bit disorienting.
Fun to play, great work!