Chui is the ferocious black leopard that guarded the Leopardman Chieftain's hut. When the thief Hero attempted to steal the Spear of Death from the Chieftain, the hungry Chui tried to kill the Hero. The skillful thief had the options of flipping through the air over the leopard, feeding the leopard, or casting Calm to still the leopard.
Chui is an obstacle for the Thief character class in Quest for Glory III: Wages of War. There are three ways to get past Chui, as described above.