It also features minor appearances by former "Game Grumps" editor Barry Kramer and Pamela Horton. Game Grumps is a Let's Play web series hosted by Arin Hanson and Dan Avidan. He enjoys bodysurfing and watching Game Grumps in his spare time. Let's Play webseries "Game Grumps". The same year, Wecht, Avidan, and Avidan's "Game Grumps" co-host Arin Hanson formed Starbomb. Avidan joined Hanson's YouTube Let's Play webseries "Game Grumps" as co-host in 2013. As of 2015, "Game Grumps" has raised over $70,000 by hosting charity livestreams on Twitch. YouTube Let's Play webseries "Game Grumps". Let's Play webseries "Game Grumps", all three alongside Dan Avidan. In June 2015, a 5-episode miniseries was released called "Guild Grumps". In June 2016, Barnatt appeared as a guest on the Let's Play webseries "Game Grumps". He has also authored multiple content-related animations for "Game Grumps Animated". He retired in 2015 to join "Game Grumps" and dedicate himself to his music career. He retired in 2015, choosing to join "Game Grumps" while focusing on his musical career. Guest Grumps is a spin-off series in which each episode features a special guest star.