User blog comment:Jimlaad43/Ragnabot 2 Final Entry list/@comment-979907-20160929050006/@comment-9751413-20161002211409

US1, it says the series next to their name on multiple appearances robots. Look there for your answer. Where robots appeared on normal and Nickelodeon versions, the normal drivers are used. Where they are Nick exclusives (Were there any?), it'll be the kids as we have no alternative to compare it to.