Along the way, the player character encounters the antagonist group Team Magma in Omega Ruby or Team Aqua in Alpha Sapphire who wish to use the power of the legendary Pokémon, Primal Groudon in Omega Ruby, and Primal Kyogre in Alpha Sapphire, to change the world to suit their desires. Team Magma wants to use Groudon to dry up the oceans and expand the landmass, thereby allowing humanity to progress further. Meanwhile, Team Aqua wishes to summon Kyogre to flood the lands and revert the world to a prehistoric state, which will allow Pokémon to live more freely. However, unlike in the original games, depending on the game version, Archie and Maxie will actually use the correct orb, leading to their Primal Reversions. With the help of Hoenn League Champion Steven Stone, and the Gym Leader Wallace, the player defeats their respective team and then either captures or defeats the legendary Pokémon to prevent a global drought / heavy rainfall and thus ensuring the teams' mutual reformation. The player then advances on to the Pokémon League, challenging the Elite Four and then the Champion, Steven, to become the new Hoenn Pokémon League Champion. The player also has the option of participating in the various Pokémon Contests throughout Hoenn, using their Pokémon to put on a performance for an audience and judges. Aside from the gameplay, 21 new Mega Evolutions were added since Pokémon X and Y, as well as "primal reversions" for Groudon and Kyogre, which function similarly. A new side quest is featured in Omega Ruby and Alpha Sapphire, called the "Delta Episode". The player must work with the new character, Zinnia, as well as Steven Stone and Professor Cozmo, to find a way to stop a meteor from crashing into the planet. This also requires capturing the legendary Pokémon Rayquaza in order to stop the meteor that holds the mythical Pokémon Deoxys. Release Pokémon Omega Ruby and Alpha Sapphire were released in Japan, North America and Australia on 21 November 2014, exactly twelve years after the original release date of Ruby and Sapphire, while the European release was the following week. They are the third remake pairs in the franchise following Pokémon FireRed and LeafGreen for the Game Boy Advance in 2004 and Pokémon HeartGold and SoulSilver for the Nintendo DS in 2009. As with Pokémon X and Y, the games include all official translations, unlike previous generations