When I downloaded and ran it, I got just a black screen. I had a similar issue with another submission, but that was because they were using a custom engine which turned out to have a bug affecting only old GPUs. It's strange that it's happening with Godot, since I use that as well and have never had this issue.

For next time, since you're using Godot anyway, consider making a web export to make it more accessible and less likely to have issues like that. It's quite easy to setup and will also help get more plays / ratings since some people might not want to run unknown executables on their PCs.

I really wish you could use the mouse, combining E Q looking around with WASD and throwing in a mazelike map design was a bit annoying lol. I got to the red level, not sure if there's an ending but it took me quite a while, and I think my timer started going down way faster for some reason and time wasn't any issue until the drops that give time stopped being spawned. The music sounded interesting but was a bit annoying after a while. Ok sorry for being so negative, but I really loved the art, especially how the character's hood would mimic a mouth for expressions, you are really creative man!! And the shotgun was pretty cool too. Glad to see I wasn't the only one making an FPS :D