"Harimao" is the Malaysian word for "tiger".
When Zenigata searches through Lupin's apartment, he discovers a green jacket and pink jacket. Lupin had worn a green jacket in Lupin the Third (1971), and a pink jacket in Lupin III: Part III (1984).
Harimao was based on the real life Yutuka Tani a Japanese born Malaysian national who gained his reputation in the years prior to World War II. Tani was active during the Manchurian Incident of 1931, when the Japanese Imperial Army used a minor bombing of a railway lines as pretext for an invasion into the Chinese territory. It was likely because of this resentment that Tani's sisters were murdered by Chinese gangs, which drove him to become a bandit attacking and looting not just the gangs but also British colonial officials. He gained the name of Harimau by giving these riches to the poor of his nation. Later Tani became a secret agent for the Imperial Japanese Army, where he is reported to have died during a mission during World War II.
The seventh Lupin the 3rd TV movie.