That was pretty much it, and it was primarily because each weapon is good for certain situations, but each requires a particular strategy and approach to be used to maximum efficiency, so that's kind of what leads to it being a hassle... especially when you find yourself in a situation where the gun you have isn't particularly useful. For example, the basic gun is worthless if you enter a room with four or more people, and the minigun leaves you without offensive capabilities more frequently than the other guns. I spent most of my time with a shotgun, but it still would be nice, if I had the regular gun, to be able to switch if I find a room that my current weapon doesn't prepare me to deal with.

I did have a great amount of fun with it, but I can't see myself able to get particularly far in the game without being able to use the right weapon for the right job.If you only did it to comply with the theme, I think you should make an edit after the jam is over, because that could be the thing that makes it more playable/replayable.

I thought at first the graphics were too simplistic, but as I played more I found it really worked quite well, especially the gas clouds and the bright white lights. Those two things, plus the gun effects, make the game's minimalistic aesthetics come together nicely.