In RID, Armada, Energon, and Cybertron? I don't recall reading an explanation about that. I understand that Hot Shot is essentially BB and Hot Rod combined. But was there an explanation as to why they went with Hot Shot and not BB? In terms of toys, I know BB was left out in the Alternators line because of the dispute with VW. But at the same time why couldn't they use another mold? It seems like BB is such a brand name character that they'd find some way to release him.