BlackFlag (one of the developers for the game) said that the Guitar Guy (Kyle Justin), looks like a skeleton in Adventures because he was originally going to look like himself and have dialogue. Later in development, Kyle decided not to have his likeness in the game. His appearance was changed into a skeleton and his dialogue was replaced. The new character is a reference to the Angry Video Game Nerd's Ikari Wars review, where it's revealed that Kyle died, but is revived later in the episode.

The original sprite of Kyle can still be seen on the game's box art.