Fantastic entry! Sadly I have a potato for a PC and it was somewhat laggy, tends to be how it goes with unreal for me, It was luckily pretty playable, the lag just makes it so I wont have much to say on the feel of the movement.
The presentation was really good! the upgrade screen and all the art really was fantastic! My favorite part by far was the reload animation. I do think it would have been funny if you reloaded what you rolled, ie rolled a 1 so you only get 1 bullet with the power of 6 would have been funny but also really clunky so its probably good you didnt do that haha.
It did start to feel like I was just circling around the same combat encounter over and over eventually but the gun sounds, good art and upgrade system kept it fun for a good amount. Would have been nice to see more enemy variety, maybe a stationary ranged enemy or a enemy who created shock waves to jump over (but you know jam times).
Only other thing would be a particle on hit so I knew exactly where my bullet landed and maybe a color clash or unique sound when hitting the enemies for extra juice (the damage numbers helped alot tho)
Amazing work all around, I am sad I didnt submit anything, so I cant rate