Pokémon Colosseum Platform Exclusivity: GameCube Only, Not PS2

No, you cannot play Pokémon Colosseum on a PlayStation 2.

Pokémon Colosseum (2003) and its sequel Pokémon XD: Gale of Darkness (2005) are Nintendo GameCube exclusives. They were developed by Genius Sonority and published by Nintendo/The Pokémon Company. They have never been ported, remastered, or officially released on any non-Nintendo platform (PS2, Xbox, PC, Wii, Switch).

How to Play Them Today

• Original Hardware: GameCube + Disc + Memory Card (59 blocks).
• Wii (Backward Compatible): Any Wii (RVL-001) plays GCN games natively. Needs GCN controller + Memory Card.
• Emulation (PC / Android): Dolphin Emulator runs both games flawlessly at 4K, 60FPS, widescreen, HD textures, with controller support. Requires owning the game disc/BIOS for legality.
• Nintendo Switch: Not available. No GameCube NSO app yet (rumored).

These are unique, darker, 3D RPG entries in the Pokémon franchise. Worth experiencing via Dolphin if you missed them.