The Transformers (TV series) of that strategy, the process was repeated in 1984 when Hasbro marketing vice president Bob Prupis approached Marvel to develop their new robot series, which Jay Bacal dubbed "Transformers." Marvel's Editor-in-Chief at the time, Jim Shooter, produced a rough story concept for the series, creating the idea of the two warring factions of alien robots – the heroic Autobots and the evil Decepticons. To flesh out his concept, Shooter called upon veteran editor Dennis O'Neil to create character names and profiles for the cast, but O'Neill's work did not meet with Hasbro's expectations, and they requested heavy revisions. O'Neill declined
What Was Missing cry because the songs featured in the episode were so full of emotion. "Adventure Time" composer, Tim Kiefer, played the instruments featured in the episode himself. To complement the tones of the bass and viola, he created percussion sounds with Game Boy loops, and then used an autochord for "Princess Bubblegum's melodies" to make "pretty, melodic swoops to accompany BMO's rigid, robotic patterns, loops, and structures." "What Was Missing" first aired on Cartoon Network on September 26, 2011. The episode was viewed by 2.185 million viewers and scored a 0.4 Nielsen rating in the 18–49-year-old demographic. This means it was