Zomboss is the leader of all zombies. He really wants Crazy Dave's brain. He likes McDonald's alot, so he made a deal with Ronald McDonald. If Ronald McDonald did his simple task, he'd keep him alive. He lied though, and was fine with what Diggy wanted to do to him.
He was able to search up info on Weegee, and brought back Waweegee & Walleo because of it. He didn't wanna fight so after his failed attempts, he grabbed Cone Head and teleported away. He tried to go after Leonidas next, and even went on the roof to get him. It still failed.