Great entry! I enjoyed it about 85%, there were some really frustrating parts due to entering a room, all the enemies spawning in, then backing up a little to take cover but they’d despawn, then they all spawn in again. Initially I didn’t realize that what was happening, and when I did, I just had to charge through. Echoing other comments, I had to turn the audio way down since the gunfire was so loud.
It was cool picking up other weapons but it would be nice if, when out of ammo, they went away so I didn’t keep picking up a dud.
I think a little bit of texture would have been nice, with flat colored blocks and very little lighting, it was sometimes hard to parse the scene.
Definitely curious what this would look like with more time.