Two formerly exclusive packs were printed in the United States, which later became available around the world: "Wildlife in Danger" and "Sealife in Danger". Several booster packs of cards have been exclusively released in the United States, including two "Bugs" packs, which are due to become a standalone pack, "Incredible Instruments", "Mysteries", "Bronx Zoo" and "Oakland Zoo". These were sold in eight-card booster packs, with a front title card. The two zoo packs were released in limited numbers as promotional materials for their namesake zoos. Another US exclusive was the "New York" pack. They also had two Soccer packs, Soccer Stars and Soccer Stadiums.