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Michael Sundman
Gaijin Goombah IRL.jpg
Goombah IRL
Alias(es) Gaijin Goomba/Goombah
Born Michael Sundman
September 5, 1984 (age 37)
Residence Texas
Nationality American
Occupation Internet personality
Years active 2012 - 2019
Internet information
Channel GaijinGoomba
Twitter gaijingoombah
Instagram gaijingoomba
Facebook Gaijin Goomba Studios

Micheal Sundman, also known as Gaijin Goombah or Gaijin Goomba, or simply GG, is an American cultural edutainment YouTuber and is the host of two shows on The Game Theorists. Michael's original show on the channel, Game Exchange, started and is still active on his personal channel and is focused on discussing cultural references in and inspirations for games. Its Game Theory replacement, Culture Shock, began as a series of culture videos between episodes of Culture Shock that did not warrant an entire episode of the latter, but grew to replace it altogether.

Michael's avatar design is based on a Goombo (not a Goomba, as many mistakenly assume), an enemy from Super Mario Land. It is has Michael's glasses and short beard and dresses in traditional Japanese robes and sandals. He also has his sword, which he calls the Pixel Cutter, usually strapped to his back. The avatar originally had a very high-pitched voice that Michael explained in Mega Man and the Singularity was used to help differentiate himself from his character. As the years passed, the voice was gradually pitched lower, until 2015 in the episode 5 Reasons FNAF is about The Bogeyman, during which Goombah transformed into an avatar resembling Micheal's human self. This stayed the norm until The TRAGIC Birth of BENDY!. From then on, it seems like Michael has moved to using a similar style of avatars as MatPat.

Gaijin is married to Sarah Sundman, a.k.a. Akiterra Goombah. They livestreamed their wedding on Michael's personal channel.


Matthew PatrickStephanie CordatoMichael SundmanRonnie EdwardsAustin Hourigan
Theorist Crew
Chris WidinEarlEdwardIdiot9point0Jason ParkerKenny LandefeldLeeSedgeSpellingPhailerThomas
Main and Recurring Guests
AbsolutePixelThe Completionist (Jirard KhalilGreg Wilmot) • Craig SkistimasDidYouKnowGaming?Fine BrothersGame Grumps (Danny SexbangArin Hanson) • KirbopherTheNationalDex (Alex FacianeKellie Whisler) • PeanutButterGamerSmosh Games (BozeFlitzJovenshireLasercornMariSohinkiWes) • Wisecrack
Former Theorists
Ryder BerginDrake McWhorterForrest Lee
Music Credits
Ace WatersGameChopsKevin MacLeodThe Living TombstoneMalcosProjeto CCOMA
Victor LopezRyan Partridge
Family Members
Akiterra GoombahOliver PatrickMatPat's grandmotherLinda PatrickRobert PatrickRoy CordatoSkip
Other Collaborators and Subjects
8-BitGaming8-bit OldFartAli-AAlltime10sAustin EruptionBlack Nerd ComedybrutalmooseCaddicarusCaptainSparklezCaRtOoNzChapelChuggaaconroyCinemassacreCinemaSinsCorridorDaniel FloydDawkoDominic Dangerfield IIDurendalGhostrachetGarrettGraham StarkGrant Thompsonh3h3productionsJacksepticeyeJames PortnowJimmy WhetzelJon BaileyTheJWittzKeemstarLimerosenLOREMarkiplierMark KernMoo SnuckelMovieBobNinja BrianNirreOrangematterPewDiePiePoppyProJaredProton JonRazzbowskiRyan CrosioScreen JunkiesSmikeSomecallmeJohnnyStrippinSuper Psy GuyTailslolThey Call Me The FizzThis ExistsVsauce3
Famous People
Bill TrinenDonald TrumpDwayne JohnsonGeorge ClooneyMatt DamonPope FrancisReggie Fils-AiméRobert KirkmanScott CawthonShigeru Miyamoto