The Orre Colosseum is a large Colosseum in the middle of the desert, where only the strongest Trainers go to. It looks as if it was built many centuries ago out of old stone and rocks. From a certain point of view, the Colosseum can be seen as if it were the main character's pose when he prepares to throw a Snag Ball. The large stones could represent his fingers, and the Colosseum could represent his Poké Ball.
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.
In Pokémon XD, the Orre Colosseum is found during the storyline, as there is no Battle Mode. It can only be accessed after a fight with Eagun, after Greevil has been defeated. After Michael proves his battling skill against Eagun, he invites Michael to attend a tournament being held in the colosseum. This incarnation has rounds consisting of four battles which are played 4 vs. 4 in a doubles format. The AI here is smarter than in any other colosseum in the game. The opponent's Pokémon levels also rise to match the player's highest leveled Pokémon, but will not go below level 60.
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: