Rebattle the elite4.
every time you beat the Elite four, red will appear at the top of Mt. Silver again
yup you can
I'm sorry, my last answer was wrong, you can rematch them, but you first have to get their number, and some of them will only rematch you on certain days.
You'd have to use cheats.
Wednesday from 10 to 19:59
on any day go to diglet cave
You have to receive their number in the Pokegear and call the at specific times
You go up to her click b,b, a, and then splooge in her face :) helpful
You can call certain ones depending on what day it is.
Call her on monday afternoons, and she will ask for a rematch at the Saffron City fighting dojo.
you battle trainers again by adding them onto your pokegear and then soon they will want a rematch
No, he does rematch you on mondays & wednesdays at the pkmn league after helping him defeat lance & clair