Matt Bragg, who is given a "builder" credit for creating the maps for "Mineball (2012)", "Grifball (2012)", and "Achievement Raceway (2013)", would eventually join Achievement Hunter in 2014.
Some of the "Special Thanks" credits goes to creations within the show, such as Ghost Ray (from Thunderdome (2013)), Mogar (the nickname given to Michael Jones), Edgar the Cow, and Flynt Coal. Some are created as jokes, such as "the dude or lady who put in the Tower of Pimps" or "censored", and some are characters from other films and TV shows, such as Pubert Addams (from Addams Family Values (1993)), Captain America, and Iron Man.
Since this is the centennial-episode finale, Lindsay Jones, Kerry Shawcross, and Caleb Denecour are given credits, despite not appearing in the episode. Ironically, Geoff Ramsey's wife Griffon Ramsey, who does appear in the episode, is not credited.
JusticeReddNeck is given a "builder" credit for "The Walls (2012)", and i COBRAxGuNneRz is given a "special thanks" credit, but is listed as "Kerbal Gunnerz"