In early builds of the game, Guitar Guy's sprites were designed after his actor in the web series, Kyle Justin, complete with dialogue referencing his appearances as a guest reviewer. However, the final game redesigns his sprites to depict him as a skeleton, referencing a gag in the Ikari Wars review where the Nerd discovers that Guitar Guy died and decomposed behind his couch before reviving him with a cheat code from the NES game. Likewise, each of Guitar Guy's lines is replaced with an ellipsis.

In a post on the game's Steam Community page, BlackFlag, one of the developers, stated that the redesign was mutually agreed upon following discussions between Justin and the development staff.