Made-in-an-hour: Labyrinth

This game was made in an hour with the theme "Only what you can see exists..." The theme suggestion came from a redditor.

The song came out okay, but I still didn't get a baseline in the fifteen-ish minutes I allotted to it. If you want to fiddle with the song, here it is:  http://beepbox.co/#5s0kbl00e03t7m0a7g03j7i0r1w3141f0000d1111c0000h0000v1000o3240...