I have to say that the Balance feels a bit rough at Times. The Laser and Uzi(?) feel very underpowered while the Shotgun and Sniper-Rifle are very strong. You can also shoot through Walls and Hitboxes are clunky. Of course that is expected from a Jam Game - I just wanted to mention that in case you continue working on it.
It's really impressive that you managed to implement seven different Weapons at all. The Gameplay was fun (until it got too hard for me (Level 4)). I like the idea of the randomly rolled Weapons - I even think it could be better if the Dice were rolled while still in the Room - so you would know beforehand which Weapon you would pick up.