Changes to Hoenn After Ancient Pokemon Battle - Pokemon Omega Ruby

After defeating Kyogre or Groudon in the Cave of Origin, Hoenn will change drastically. The first thing you should do is visit Professor Birch in Littleroot

Pokemon: Everything In The Hoenn Region Changed In Omega Ruby & Alpha Sapphire

Hoenn Starter Pokémon Battle Royale, Death Battle Fanon Wiki

Mega Latios, Mega Latias, Special Demo Version On October 21st, And More Announced For Pokemon Omega Ruby & Alpha Sapphire - My Nintendo News

Pokemon Omega Ruby/Alpha Sapphire 'special demo' hits October 21

Pokémon Omega Ruby and Alpha Sapphire, Soundeffects Wiki

Pokemon Global Link Will Undergo Maintenance Between November 13 - 21 To Add New ORAS Features - My Nintendo News

Alpha Sapphire / Pokémon: Omega Ruby

Pokémon Omega Ruby & Alpha Sapphire - Useful Characters

Pokémon Omega Ruby & Alpha Sapphire - Music Changes