Fun game, controls are simple but allow for a level mastery.
I love the literal spin to reload idea, I especially how it doubles as an attack and with the right upgrade also becomes a pseudo dash. Unfortunately I found it wasn't very useable against the bosses as I'd just get hit, but for clearing mobs it was great.
In terms of feedback, try improving the lighting a little or making enemies stand out more. I kept get getting hit by enemies I couldn't even see.
also some hit flash/sparks on hitting enemies would go a long way.
But overall, a nice submission.