Morty were aggressive?

Here's how I think that would play out.

After Luigi gives Morty his Megaphone back,instead of doing the face he does in the game,he gains a devious smirk. He grabs Lugi by the straps if his overalls,and throws him into the 5th set,the Kajiu set. Morty then possesses the Yeti suit seen near the Castle set. The fight would play out like the Kajiu Goob fight,but with more Yeti like attacks. Luigi would get the Elevator button like the rest of the boss ghosts.