Thank you for the feedback! Super glad you enjoyed the vibe. We had a ton of fun with blending the music with the map, and Karl Casey at White Bat Audio does not miss :). Portal definitely helped inspire us for this game. Totally hear you on the level size. We got a little too ambitious early on when we were designing the mazes, and quickly discovered how fast a week comes up. There were actually some mazes that I had built that we had to completely skip for this jam because of that. In future releases, we plan on adding more intermediate levels and adding more puzzles and other environment mechanics to make the game feel less empty. We may even add chunk-based world generation to make the game infinitely replayable :)
Really really appreciate you playing and taking the time to leave such thoughtful feedback!