I couldn't find any control hints. Trial-error discovered that Left Click = Shoot, R = Reload, TAB = change sensitivity (very difficult to adjust the slider without seeing the mouse), and Spacebar = Jump (needed to use it in the last level). Not sure about Right Click = Make Gun Smaller (didn't help aiming).

The guns themselves though are cool to use and look extremely dope! Your multiple level designs and enemy designs are also awesome!

Just had issues with 2 things:
- Couldn't swap between guns with the in-game mentioned numpads, and 
- Very big invisible enemy colliders meant I got stuck a few times in rings of 'em.

Overall, a great effort - especially with using Unreal Engine!