Trivia / Johnny Maxwell Trilogy

• Completely Different Title: The German translations of the sequels give them new titles modelled on the title of the first book. Johnny and the Dead becomes Nur du kannst sie verstehen ("Only You Can Understand Them") and Johnny and the Bomb becomes Nur du hast den Schlüssel ("Only You Have the Key").
• Defictionalization: Only You Can Save Mankind describes Wobbler creating an almost Unwinnable Joke Game, Journey to Alpha Centauri, which does nothing but display a blank screen for 3,000 years (about the amount of time it would realistically take to travel to Alpha Centauri in any plausible Real Life spacecraft) and then display a tiny white dot and a text message, "Welcome to Alpha Centauri. Now go home." Julian Fleetwood took the initiative to program an Interactive Fiction version of this game in 1998, which is playable online.