A large playlist collection of Game Grumps episodes that only feature Mr. JonTron before his departure from the show. Enjoy! Jan 17, · For anything about the YouTube gaming channel Game Grumps. Game Grumps is made up of Egoraptor, Danny Sexbang and formerly JonTron. Other Grumps not featured in the main Grumps episodes include RubberNinja, Mortem3r, and Brian Wecht. Game Grumps was formerly edited by Matt Watson & Ryan Magee, and previously edited by Barry Kramer and Kevin.