Weegee

Weegee is a malicious Luigi YouTube poop who died in Chapter 1 Part 29 due to his revelation as the ultimate boss after several previous appearances, including as Weegeebot. He merged with Bowser and a group of rapsters to try and defeat Team NES. He managed to return by creating a chamber of evil accessible only to his true heir, The Magic Hat, who possessed Flats to kill people.