Pokemon Colosseum is also my favorite Pokemon game ever. I love how the main character is an anti-hero and the story is really really dark. The OST is also awesome and really memorable. I don't know if we'll ever see a game like that again though, unfortunately. I mean the "rival" in the new games are super nice and your best friend. So lame. If Detective Pikachu does well, maybe they'll consider a darker game, since that movie is supposed to be a more rugged version of Pokemon.