Also when I press control, nothing visibly changes. I don't think it works? I also tried to press E to interact with the hole at the end of the level and nothing happened.
It works though we didn't have the character ready in time and it was fairly last minute getting everything hooked up for it ;-;
Uhh if you mean the one in the left wall you have to crouch through it If you mean the one on the north wall you have to be near the green glow for it to work