The Great Battle Kukku (グレイトバトルクック Gureito Batoru Kukku?), also known by his full title Great Battle Kukku XV (グレイトバトルクック15世 Gureito Batoru Kukku Juugo Sei?), is the main antagonist in Tails Adventure. He is the leader of the Battle Kukku Empire who orchestrated an attack on Cocoa Island to seize the Chaos Emeralds for world domination, but was foiled by Miles "Tails" Prower.