This is a super fun game! I like it a lot! The pacing of the game is very nice, I do like the fast restart that makes the game really shine as a speed run/perfectionist run game, too! The huge amount of weapon choice and seeing how different they are from each other make me really wonder how you are able to pull this off in just a single week. Bravo. I especially like using the shotgun once I understand this is a slug rather than spread damage, and using it to two-shot each enemy is very satisfying. Btw this is probably the first time I saw achievements in a game jam, and this is just a level of polish that demands some praise.
For some criticism, I'd say the doors are very unnoticeable expecially when you are running from room to room. It would be much better if the graphics would suggest a bit more of the doors' existence. It would also be nice if there was a level selector so that I could try grinding that level. Also, some high-octane background music would be nice too!
Anyway, this is a very good entry. Well done to the three of you!
BTW, the banner doesn't do the game justice at all. Consider changing it for a better one