at the end of Pokémon Ranger: Shadows of Almia, you get a password to a new mission that gives you a Manaphy Egg, which can be transfered to a Pokémon Diamond and Pearl game and THEN thansfered to another Gen 4 game so it can potentially hatch as a shiny Manaphy.
The hunter will need a Nintendo GameCube to Game Boy Advance cable, A Game Boy Advance/SP, a Nintendo GameCube, an English copy of Pokémon: Saphire or Ruby, and a copy of the Pokémon Colosseum Bonus Disk