"They turned house into a robot - fascinating!"
Yes this is the Mystery Shack mech walker from the last episode of Gravity Falls. It missed some minor exterior details, but I have no time to make them for now =(
Controls: thrust to walk. VTOL slider down to enter in battle mod. There is rocket pod in totem it activates as usual. Yaw to move hands left/right. Roll to turn house(be careful with that).
*Warning!* Rotators can't handle the weight of house with everything on it so I used some almost invisible support. Also it helps walker to stay vertical because the original legs don't grant stability to it.