Yeah, I see what you mean. Though if you choose the "random" button on the weapon screen, you get a random weapon every time you roll. This was the main mode at first, but we ended up giving the choice to choose your weapon. Didn't give the button a description though, so I wouldn't be surprised if no one knew about it.
Sounds like you got pretty far. Definitely farther than me, lol. Do you remember how long you lasted?
Viewing post in Shooting The Dice jam comments
Ohhh changing the gun at roll would fit the theme more, but I think it would have made me sad since I tailored my choices of powerups for the gun I had haha. Dang, sorry I don't. It was a good while. Probably like 5 minutes of game time. I wish I took a screenshot of the final score. Good luck on the jam :)