In Pokémon Colosseum, it can only be found in the Battle Mode, where a level 50 version appears after all level 50 Colosseums (Phenac Stadium, Pyrite Colosseum and Under Colosseum) are completed and a level 100 version when the level 100 Colosseum (Tower Colosseum) is completed. Orre Colosseum comes in Single and Double; players must beat the Single and Double modes of each level, respectively. Orre Colosseum has tournaments with eight battles, each 3 vs. 3.
Pokémon XD
In Pokémon XD, the Orre Colosseum is obviously found in the main RPG, as there is no Battle Mode. It can only be accessed after a fight with Eagun, after Citadark Isle has been completed and Greevil defeated. This reincarnation specializes in double battles - each round contains 4 battles, each 4 vs. 4. The AI here is smarter than any other in the game. The opponent's Pokémon levels also rise to match the player's highest leveled Pokémon.
On Battle #4 of each round, the player will battle a character that was seen earlier in the game. Once beaten, they will give a reward, and a title. In the order that they are defeated: