Rugger is Jimmy's owned a dog fight, which took part in the world cup.
Shiroi Senshi Yamato[]
Yamato, Ryō, Jumbo and Ishigake met Rugger and Jimmy for the first time while on the beach. Rugger played football with his owner, who was confirmed by a press mass. Thus they were training for a future championship match. Rugger was able tactical skill of controlling and anticipate the opponent's attack in battle.