Each of the first three seasons of the series featured its own tailored opening sequence, featuring completely original animation and a unique arrangement of the theme tune. Additionally, the third-season premiere "Five Faces of Darkness" had its own specialized opening, depicting events that occurred in the mini-series. The fourth season, however, did not feature any new animation in its opening sequence, instead combining together footage from the third season opening and various clips of animation from 1987 toy commercials; likewise, the fifth season featured commercial animation mixed in with footage from "The Transformers: The Movie". Both used the season three musical arrangement.