All you have to do is get to Viridian City.
Blue (The eighth gym leader) is waiting on Cinnabar. He won't battle you unless you've beat the rest of the gym leaders
You have to show Blue the other seven Kanto badges so the guy in front of the Viridian City gym will move out of the way. Blue is on Cinnabar Island.
Yes, to get to the Electricity Gym
You beat the 6th gym leader.
Go to Cinnabar island and talk to Blue. He'll agree to go back to his gym and battle you.
The eighth gym leader still awaits, as well as the whole of Kanto.
His name is Blue, and he is on Cinnabar Island. Show him the other 7 Kanto Badges and he will go to the Viridian City gym. Then, go to Viridian City and battle him at that gym.
Blue (The eighth gym leader) is waiting on Cinnabar. He won't battle you unless you've beat the rest of the gym leaders
Not enough info: which gym leader?
you have to go to every gym in kanto a beat all the gym leaders
Janine I think
misty
You have to beat team rocket
Yes, to get to the Electricity Gym
You beat the 6th gym leader.
You have to show Blue the other seven Kanto badges so the guy in front of the Viridian City gym will move out of the way. Blue is on Cinnabar Island.
In Johto, it is in Olivine City. In Kanto, it is in Fuchsia City.