go to saffron city and then go to the copycats house. she'll tell you about her missing pokedoll. go to vermillion city and go to the pokemon fan club. talk to all the people one of them will give you the doll. take it back to the copycat and she'll give you the train pass
you can ride the magnet train
after you get the magnet train pass use the magnet train
go to magnet train manger and ask him to give you a train pass
The copycat gives you a pass, for the Magnet train (Saffron City to Goldenrod City).
nothing...
you go to the Pokemon tower
You can use it to take the magnet train to kanto I think.
You have to help the CopyCat girl in the Pink House in Saffron City with her problem (after you defeat Red). After completing her task, she'll give you the train pass. You can then go on the magnet train.
You need to have mewtwo to get it
You talk to the copycat girl in the city with the magnet train in Johto and bring her her pokedoll from viridian in Kanto
Get on the magnet train and it will take you to Goldenrod city. You can back and forth between johto and kanto easily using the magnet train, but it's not essential.
It's in Saffron city and in Goldenrod city. You have to get the Magnet Train Pass from Copycat, who lives in the street below the Magnet Train Station in Saffron City.Her house has a roof that looks like a lego. Find her Clefairy Doll, which is in the Pokemon Lovers Club in Vermillion City, and talk to the man next to it, who will then give it to you. Return it to her to get a train pass.