Fun, action-packed game! I quite liked the manic and improvisational nature of having to contend with all sorts of wacky bullets, from classic lethal bullets to more wacky bullets like a party popper or a grapple hook. The ever-increasing arsenal along with a ever-advancing enemy force with new units to combat made it feel great to get further and further, especially since the combat felt very juicy with corpses flying and bodies burning and all that. I do wish there was a bit more of a way to tell what bullet you currently have or are having next, as it's so tucked away in the corner it makes it tricky to keep track of in the heat of an intense firefight, but I just considered it part of the challenge.
While it was fun, I did feel like there are some weird design elements to it that could maybe use some polishing. For example, I feel like the random generation shouldn't allow stairs to generate right next to you, allowing for an effortless floor clear. Furthermore, the whole gathering new bullets from power-ups feels weird, because technically wouldn't a player want and can avoid picking them since they might want to avoid complicating their loadout? That's not ideal because the whole point should be about having a wacky loadout, so avoiding shouldn't be possible. I kinda felt like the game should just start you with all of the bullets loaded already, or maybe just add or give you random loadouts each floor to force the player to contend with the wackiness. But of course, for a game jam, these elements are understandable: maybe revisit the concept in a future enhanced game?