how can I let the guard loose the key wihout that when the guard is knocked out, that the guards bring me to the cell back?
Check the spoiler-free walkthrough here~: https://www.newgrounds.com/portal/view/729282
one you start winning,the dialogue will tell you that her grip has loosened on the key. From there you tug at the key 2 times and select "wait" so she dosnt wake up. Repeat this cycle and you should have used the key to remove your shackles. From there you go to the mechanical arms and attempt to grab the keys. The arms will pop out but that's where you'll try again and escape with that key. From there I'm stuck 馃槄. That's all the advice I can give! 馃榿
Screw it, I give you the BDSM Dungeon run down:
I figure I might as well contribute, hopefully anyone will be assisted.