After your Pokémon have reached a certain level, you will have access to the Battle Royale room. This room has you and your Pokémon companions sent in to a constant battle against dozens upon dozens of Pokémon.

The task here is to become the champion of the Pokémon. Face off all the Pokémon that are sent against you without losing and you may yet win. Once you become Champion, you will rank up and face even stronger Pokémon including the legendary Pokémon. At the end of each round, you will face the sihlouetted boss Pokémon. Like the Boss Pokémon in the Wild areas, these Pokémon can be larger than before.

This mode is also playable with friends, allowing for up to four player play. This allows you and your friends to face the swarms of Pokémon and show how strong you are. At the end of the stages, you get ranked based upon the amount of Pokémon that you have defeated and a winner is then declared.