The "Ultimate" goal is to defeat Red who is at the top of Mount Silver. All his Pokemon are between 84 and 88 so he is pretty hard. You may also have noticed that the Pokemon league elite four has become more powerful, I personally wanted to defeat them again when I noticed that. And there's always the goal of catching every single freakin' Pokemon which basically means every single one from Gen 1,2,3 and 4 :P.
the 16th gym leader is:Trainer Blue
Viridian city
yes, but first you have to beat blue (16th gym leader) and then you can find him in mt. silver cave
You get it from Professor Oak after you beat Blue ( the Viridian Gym Leader.)getting your 16th badge. Go to Pallet town and talk to him. after that you can go to Mt. Silver.
go to that island that had a volano eruption and talk to the guy there once you have 7 badges and he will go to the gym.then you go there.
seafoam islands; 15th gym
In the gym!
in his gym
no
The fourth gym leader in Pokemon Soul Silver is in Ecruteak City.
Gary isnt a gym leader
go to the Pokemon gym