Wamuu's most notable traits are his love of battle and his sense of honor, such that he stops himself from finishing off a defenseless Joseph Joestar. he once let Joseph beat him as punishment for letting his guard down and strongly disliked that Joseph expressed pity on him. On the other hand, Wamuu has a high opinion of himself, as he regularly deems certain individuals "worthy" or "unworthy" of fighting him. Wamuu also opted to kill the helpless Speedwagon and Caesar who saw his humiliation.