Olimar's son is in need of otherworldly treasures to get the Space Explorer Merit Badge in his Boy Scouts Troop. You also need 2,500 Pokos to buy them a new house on the Pikmin Planet, where the whole family will move in along with a colony of Hocotatians in a year. You can play as Olimar or Olimar's Son, and eventually his wife and daughter. You choose weather to use treasures to words your son's 750 merit goal, or to use them to sell for pokos.