i loved the (tortured) atmosphere of this! the audio was so wonderful as a compliment to how you navigate the space. the i couldn't figure out if the "up down left right in out" implied that there are keys aside from arrow keys that might let me go "in" or "out" at certain points of interest, but you can bet your bubblegum i rolled my face on my keyboard in attempt to find out :)
[SPOILER?]
(p.s. is there anything one can do at the exit?)