First, you need to collect all of Johto's badges and defeat the Elite Four (and I believe you need to catch/faint Lugia first, as well). After that, go and visit Prof. Elm, and he'll give you a ticket to the S.S. Aqua in Olivine City. Just get on that boat! It'll take you straight to Vermillion City in Kanto.
In Cerulean City there's a house in the east side of the city. A police officer is standing in front of the door. She won't let you in. So you have to defeat Gym Leader, Misty. Once you are done, the door will be free. Enter the house. You will see a hole at the back side of the house. Exit the house and beat the team rocket unit in the yard. He will give you the stolen TM DIG. Follow the path south until you get to the underground path. It will lead you to Vermilion.
When you get all the gym badges in johto you get a phone call from professor Elm you go back to new bark town and go to the lab you get a ticket for a boat then you go to Olivine City harbour then they will ask you for your ticket (BUT you must of caught Ho-Oh) once your in there will be a man panicking about his grandchild she will be up beside the captain but there is a man who will not let you through unless you get the sailor you go back to the start and on the very first door on the bottom there will be the sailor then fight him go back up to the man and he will let you though then go up to the captain's room and there will be the grandchild then she will play hide and seek with you and then find her after all that they will announce that you are in Vermilion City.
On the S.S.Anne ship. Its at the south side(bottom) of vermilion city.
He doesn't have a name. He's just "The Chairman".
Use the Vs Seeker, which is found in Vermilion City in the Pokemon center
The vs seeker can be gotten in the Vermilion city Pokemon center, by talking to the girl next to the counter.
The bike shop is in Cerulean City. But, to get the bike for free you need to go to Vermilion. There, you will get the voyeur for a free bike from a old man.
In Vermilion city.
Vermilion city.
Vermilion city.
in vermilion city
Its on the Route west of Celadon city and east of Vermilion city.
vermilion city. fly to pokecenter, then go south.
At The Ship In vermilion city down from Misty's gym
On the S.S.Anne ship. Its at the south side(bottom) of vermilion city.
Vermilion city is south from Cerulean city to get there though you need to use the underground path.
You can get it at Vermilion city but you need a spearow because you need to trade with a girl with that
He doesn't have a name. He's just "The Chairman".
go to vermilion city and go to the boat on the third deck in a cabin