An Extra Link (Japanese: エクストラリンク, Ekusutora Rinku) is a series of co-linked Link Monsters that connects one Extra Monster Zone to the other. The monsters that make up the Extra Link are considered to be Extra Linked; additionally, any monster co-linked to an Extra Linked monster is also Extra Linked. An Extra Link is formed regardless of which player controls the monsters, including the monsters in the Extra Monster Zones.