From Bulbapedia, the community-driven Pokémon encyclopedia.

The Robo Groudon is a device that appears in Pokémon XD.

When the player goes to the laboratory to upgrade the scooter, Chobin mistakes them for a criminal, and engages them in battle. Afterwards, Dr. Kaminko appears, and Chobin explains everything to him. After departing, Kaminko asks the player if they wish to get what they deserve. By answering "Yes," a Robo Groudon will appear with Chobin inside, challenging the player to a battle.

After the match, Kaminko decides to stop creating Robo Pokémon, suspending his Robo Kyogre project.