Congratulations on completing the jam!
I really liked the way the random guns forced me to switch up my playstyle mid-round, felt like I could never just stick to one cheesy strategy with the minigun or sniper rifle. That said, often the movement on-screen was too hectic to take my eyes off of the player and see what gun I had just acquired on the left bar. Possibly elongating the game by giving the player more ammunition so they get more locked into a play style, then a temporary breather while swapping weapons to highlight the result of the dice.
Great audio as well, the main chiptune theme fits well, I even turned it up on the main menu :)
The visuals were a little cluttered to me as I was having a hard time telling apart enemies that would hurt me if I bumped into them, bullets, and then the exploding enemies. Some color coding here would go a long way for readability at a glance.