The Red you see in Mt sliver in Gold/Silver/Heart gold/Soul silver is from Pokemon Yellow.

You know trainer Red?yeah,Pokemon Gold/Silver/Crystal/Heart gold/Soul Silver is part 2 to Pokemon Yellow from the gameboy. Proof 1.Red owns a Veansaur,Blastoise and Charizard. In Pokemon Red or Blue(Us Version),you as Red , only have 1 of all of these pre-evolutions. Only Pokemon Yellow,you are able to have all 3 Pokemon.You can get Bulbasaur from a girl in Cerulean City if you and your Pikachu's relationship is high enough.You can get a Charmander from a Trainer in Route 24 in Pokemon Yellow and you can get a squirtle from Officer Jenny when you get a thunder badge.Hence,Red is able to get all these Pokemon in Generation 2. Proof 2.Why doesn't Red evolve his Pikachu? If Generation 2 takes place after Pokemon Red or Blue(Us version),why doesn't he want to level up his pikachu?In Red and Blue,you can have an option to evolve your Pikachu into Raichu easily after The 4th or 5th gym.Well,that is that Red doesn't want to evolve it or He cannot evolve it.In Pokemon Y...