* MarthDebutedInSmashBros: ''VideoGame/SuperSmashBros Melee'' featured three trophies based on Robos from ''Custom Robo V2'', which never saw release outside of Japan. The series wouldn't make landfall in the west until ''Battle Revolution'', three years later.
* RecycledScript: ''Arena'''s plot and and overworld graphics are recycled from a canceled GBA Custom Robo game, hence their primitiveness.
* SequelFirst: The first game in the series to be released in the US was ''Battle Revolution'', which was for the GameCube. Naturally, they dropped the subtitle (like they did with ''{{Franchise/Fire Emblem}}'').