Treehouse skip: If you somehow manage to clip from the attic through the floor in the liar, maybe you can activate trigger for ending game. Fish rod skip: If you manage to stun Ethan between logs in the sawmill next to the cat, then you might walk on his head and skip cat. Crowbar skip: If you somehow mange to remove the latch while standing on another side, then you can open the door.

Treehouse skip is impossible because trigger to end the game works only after you collected all the items. Fish sod skip is impossible because there is too big distance between two logs.