This is awesome. I love the art style of games like Quake, and this not only scratches that itch, but the movement also feels kind of similar. It's crazy to me how you guys made this in only 4 days. The puzzles are also really well designed.
The only criticism I have is that it was kind of lagging here and there, but well, this is a game jam game after all, so I think that's negligible.
Good job, guys!