after you get all 15 badges go to cinnabar island and there will be the 16th gym leader after you talk to him go to the virdian city gym and he will be there
You have to defeat the other 15 gym leaders, and then talk to Blue (the 16th gym leader) on Cinnabar Island. He will go to Viridian City once you show him the 7 Kanto badges you have obtained.
the 16th gym leader is:Trainer Blue
there is no 16th gym in soulsilver u dope....
Well after you defeat 15 gym leaders in Pokemon HeartGold / SoulSilver go to Cinnabar Island and talk to Blue.
you have to defeat the gym leader in the 5th gym or something ...
I get the strongest Pokemon I can get without them disobeying me then I battle the gym leader. I usually focus one or two Pokemon that could defeat the gym leader alone and I train them until I think that they are good enough to defeat the gym leader.
defeat brock blaine misty ericka poison leader and all the other gym leaders
You defeat the trainers and the gym leader, Misty. Electric attacks are best for this gym.
the 16 leader is in virdinian city after beating every other gym leader
Sabrina
you have to get the legendary in the game
You go on to defeat the eight gym leader.