First appearance of the Throttlebots
Wreck-Gar quotes Dr. McCoy from Star Trek. "I'm a doctor, not a forklift." "He's dead, Jim." Galvatron is voiced by Frank Welker, replacing Leonard Nimoy from the film. Welker and Nimoy have both played Mr. Spock.
Final appearance of Soundwave, Ratbat and the Stuntacons.
Final appearance of Bruticus, Superion, Defensor, Wheelie and Megatron (original flashback scene).