[-] TrickleJest suggested:
Y: Form a totem pole for extra STRENGTH.
[-] Poligrizolph suggested:
Y: Punch your way through the door. With your tongues.
[-] Piono suggested:
Y: This will be interesting.
You get onto Clubs and punch up the door a bit with your tongue. The door effortlessly deflects the lick, for it is invincible. No matter, the door will automatically open in a few seconds.