Adaptation Dye-Job: In order to fit with the character, Marina's design was recolored from her game counterpart's to look more girly than tomboyish (pink instead of red, blue rather than yellow, light blue hair instead of dark blue hair, etc.)
Ascended Extra: Professor Sebastian, a One-Scene Wonder in the special, went on to become a more important character in the later Lake of Rage two-parter. A Rocket agent working under him there even has the same type of uniform as Attila and Hun.
Bit Character: Kudo. The man has, what? Two minutes of screen time total? About half that in the dub considering that they cut the whole epilogue. (Yet, he somehow earns himself his own eyecatch...)
Broken Mon: Raikou. It's... leery of humans. Being continually molested by Team Rocket can't help matters.
Dub Name Change/Dub-Induced Plot Hole: Jackson is renamed "Vincent," and Eusine is renamed "Eugene." Keep in mind that both characters retain their Japanese names (Junichi and, as mentioned above, Minaki).
Electric Torture: While Raikou does get shocked a lot, it at one point is also forcibly and painfully drained of its own electrical power.
Fangirl: Marina is a total Lance fangirl. Or as she calls him in the dub... Fabu-Lance!!
Lower Deck Episode: Other characters besides Ash and those he knows are the main characters for this special.
Million-to-One Chance: When the Black Hole Crystal activates, Eusine Eugene explains to Jimmy and the others that their only chance of saving Raikou would most likely become a suicide mission if not timed to the right fraction of a second.
Moment Killer: Vincent is this when Jimmy and Marina are making eyes at each other at one point. Justified however considering that they were still in danger from the villains, and Marina was still sitting on his back after falling several feet from the air.