You have to have all the gym bages
Defeat Team Galactic on Mt. Coronet.
There is, in fact, no route past route 24
if you mean in Pokemon diamond/pearl/platinum you need to get the national dex!
cach pearl the legndary Pokemon
You can't get past route 18 because there's nothing past it.
Um you cant they are just there. i have no reason why they put them there though. maybe later Nintendo might find out what to do with them
There is no Kecleon on Route 210.
poke battle tower i think u see your rivalsdif guy complete the sinnoh pokedex
i smell bad
past floroma.
you have to have action replay
You have to beat the league.