"Far behind the inventor you see a poster for Game Grumps, the popular internet series hosted by Arin Hanson and Dan Avidan. At the Museum Entrance, if you type in "Game Grumps" a secret message will appear.Two are Birdman and Ego Ham, which are based on Jon and Arin respectively. On the 2nd floor of the Internet Building in the Media district, you can find "GoobTubers" who you must battle and defeat, based on different popular YouTubers.Portraits of Matt and lovelie Vitas Varnas can also be found. In the Hall of Champions, a portrait of Arin's Grump head can be found.When you encounter him, he'll say "Sick Marmalade, Grandpa!", a reference to the " Counter-Strike: Global Offensive" episode. One of the bosses in the game is Grump Dan which is a reference to Danny.Both Arin and Ross, as well as Danny, also provide voice work for the game. In Crosstown, Arin and Ross can be seen together drawing on pads.The three post-game ghost master trainers: Psychic Arin, Psychic Danny and Psychic Ross, are named after Arin, Danny and Ross respectively.Pokémon: Let's Go, Pikachu! and Let's Go, Eevee! The Glam Metal Nun character has a tattoo with the initials NSP, likely referencing Ninja Sex Party.Lovelie Vitas Varnas also provided the voice for the Dimmer Switch Prodigy Child character in the game, along with Ross who voices a bridge troll. His bio reads that he had his head preserved in a jar to continue his fan support for Game Grumps as well as his career as an actor. Vitas Varnas appears in the game's Head Mart.You can find a poster for a game called Steam Quest: Gabe's Revenge with Ross and Danny on the artwork, a reference to Steam Train and their King's Quest V series.Steam Quest: Gabe's Revenge, a reference to Steam Train and their King's Quest V series in Paradigm. One of the names which you can come across at the border checkpoint is Arin Hansonov, a reference to Arin.Lovelie Vitas Varnas can also be played when using the "t" key, and can be seen on a portrait. Holding the "a" key for 5 seconds whilst paused will let you play as Danny.In the missing person's database, the biography for Vitas Varnas (based off the same lovelie) says "Continues to traverse the void of space whilst also hoping to soon catch up on Game Grumps.".
A Ross RubberNinja voice pack can be purchased for the game which features two sets of voice commands with his voice.Real Talk? He Wasn't Paying Attention." A reference to Jon and one of his common catchphrases " Real talk" In the level "Live Freemium or Die", you can find a gravestone which reads "Here Lies: Villager Jon (?-2013) Killed by the Creatures.If you type "godanny" at the level select screen, Dan's head will be replaced with Danny's.In the game's credits, one of the comments posted by Ashley Rochelle, one of the game's developers, reads "Mycaruba", a reference to Grumps' playthrough of Out of This World.In you enter the file name as either "Egoraptor" or "Grumps", you'll unlock the "Hey I'm Grump" or "I'm Not So Grump" accessory which are masks of Arin and Danny's Game Grumps faces respectively.Video games Bloodstained: Ritual of the Night 1.12 Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!.