All legendary
you cant cause its the end of Pokemon sapphire. but the game Pokemon emerald has the whole battle frontier.
u cant there arent any
you cant beat the battle tower
Mo battle tower
We can get other regions starter Pokemon if we defeat the battle tower
you cant
after you battle 7 trainers in the battle tower you will get 3bp
it cant be done but use the ar code Pokemon modifier to get any Pokemon u need
get a high winning streak at battle tower
The Battle Tower is still there at the fight area but now it is the battle froniter
i got mew by going into that tower where the ghosts are and you Pokemon cant battle them. there is a secret key but i think you need to trade to get it.
you cannot ever beat the battle tower. but if you have completed the sinnoh pokedex then the battle tower will help you complete it. you can battle at the battle tower as long as you want.