Heyo ~
I thought that the randomly generated mazes were really cool, and the vibe felt pretty awesome.
One suggestion I have is that the mechanics as the player collected more keys started to feel more tedious than challenging, and I kinda gave up after getting three keys and failing to find the last key. While I was going along I was expecting something to start following you - especially after the static effect after collecting a key. I think that something like this would have really fit in well with the music + theme of getting lost and confused in the maze. Honestly I felt a little spooked the whole game just thinking that something might come for me.
Like I said I think you guys nailed the vibe and I'm super impressed with what you accomplished over just a week. I had a lot of fun, great job :)