Dynasty Warriors 8 - Theme of Lu Bu Cover
From Wikipedia:
Although Lü Bu is described in historical and fictional sources as an exceptionally mighty warrior, he was also notorious for his temperamental behaviour. He switched allegiances erratically and freely betrayed his allies, and was noted for his poor planning and management skills. He was always suspicious of others and could not control his subordinates. All these factors ultimately led to his downfall. In the 14th-century historical novel Romance of the Three Kingdoms, the details of his life are dramatized and some fictitious elements – including his romance with the fictional maiden Diaochan – are added to portray him as a nearly unchallenged warrior who was also a ruthless and impulsive brute bereft of morals.