The Rancor was a huge monster that appeared in Star Wars - Episode VI: Return Of The Jedi. The beast was kept in a cavern underneath Jabba the Hutt's palace on Tatooine and occasionally Jabba would punish those who displeased him by opening a trapdoor to the Rancor's lair and dropping unfortunate victims in for the creature to feed on. Jabba attempted to kill Luke Skywalker by feeding him to the Rancor, but the young Jedi, despite being disarmed, was able to survive his encounter with the beast. He lured the Rancor beneath the large metal gate of its pen and then threw a rock at the gate control panel. The gate shut as the Rancor lurched through and came down upon the creature, splitting its skull.