That sounds like something a headline generator would come up with, but I promise you, this is a real thing that happened.
In this clip, Robert Franzese (aka Real Life Peter Griffin) takes on Super Mario Bros. and beats it in under an hour. Slow by professional speedrunner standards, impossibly fast by Peter Griffin standards.
Weird crowd reactions. As in, almost no reaction. I guess they were there for the Griffin jokes, not the Mario.