How do you be the Pokemon champion in ruby?
First, get all eight gym badges. Next go to Evergrande. A water fall block the city so use the HM you found in the cave with Groudon. GO TO THE POKEMON CENTER!!!!! (you must do this before you continue) Go to the cave and get to the other side. Wally will battle you. If you lose, You go back to the PC. If you win, leave the cave. Go to the building and heal from the battles. Buy supplies and talk to the boys. They will let you through, but you never go back until you lose. finnally, battle the champion. win and you are the new champion