1) Try jumping a lot then... open a door ? Or Continue jumping ? Whatever...
3) Directions are shown on a pamphlet if I remember well, I'm not sure. It can spawn in any classic room if that's what I think it is!
1) did that already. pretty tiring for my hand. Keeps glitching me through the floor and then rubberbanding me back but still no new room after opening doors. What's "a lot"? like 5 minutes? more?
3) I was SURE I had done that one multiple times already but I guess not. After searching today I have finally unlocked it at some point.
Not triggering :( Tried jumping in place; while moving; jumping fast; jumping slow (waiting for the height to fix itself before jumping again); checked all the doors. Still regular rooms everywhere after.
Maybe the jump registering is broken?
And I am opening the door(s) after jumping. Also tried before and during jumping cause I'm out of ideas... Also tried opening a door while in-air after jumping 20 times. Nothing...