His bio described him as an idealistic Autobot who believed that sports could be the answer to replacing Cybertronian gladiator games or even the war itself. He genuinely wants a Cybertron free of war, although he hasn't had much success in bringing other Autobots around to the concept.
Eject first appeared as one of Blaster's warriors in the Transformers movie, where he participated in the battle for Autobot City.
In episode 78, "Madman's Paradise", Spike and Carly hosted a banquet for a visiting ambassador. Daniel got bored and wandered off. Grimlock followed him, and they fell into a lost chamber where Quintessons banished their criminals to other dimensions. They slipped through to the sorcerous other-dimensional realm of Menonia, and were tricked into fighting on the Red Wizard's side, only to find out that he was the Quintesson criminal, who overthrew the Golden One. Ultra Magnus, Blaster, Eject, Rewind, Ramhorn, and Steeljaw followed, and using Blaster's amplification, they help the Golden One defeat the Red Wizard. With the help of Perceptor, the Autobots and Daniel are returned to Cybertron.