ik this place is prob dead but if you have a taller avatar you can jump into the ceiling tile that the axe is in and grab the axe early. the only problem is you cant break the glass on the button until the other person pulls the lever that would normally drop the axe. Theres another glitch where the person who normally has to get the red button on the brick wall can grab the red button and run back until he gets brighter sight and it will make it so that you dont have to guess for the tunnels. idk if i found something new but i guess theres more of a reason to go for any% and any% both endings.