Gleeok (グリオーク Guriōku?) is a boss from The Legend of Zelda. It is a large, green dragon that inhabits various dungeons. Gleeok has anywhere from two to four heads, each attached to the body by a long neck. These heads detach from the body when they sustain enough damage, and will then fly around the room shooting fireballs at Link. It is possible that Gleeok was inspired by the Lernaen Hydra from Greek mythology.