Board Thread:Super Smash Bros. Discussion/@comment-26939789-20160925141522/@comment-6684591-20160928173723

Rosalina and Luma work on a single skeleton system; basically, no matter where Luma is on the stage compared to Rosalina, when the attack button is pressed, Luma and Rosalina will both attack simultaneously.

Ice Climbers are much different. Nana is a computer AI that follows Popo and simply carries out the same commands as Popo when close to Popo; when Nana and Popo get separated, Nana won't attack when Popo does until Nana gets back to Popo.