i don't remember ever seeing this mentioned before, but there is a non-named npc of Mao Zedong in shenmue 2. he appears in several locations. i first noticed him at the arm wrestling place in Aberdeen (behind kaihou transport - near entrance to workers pier). he is sitting right at the first table facing you as you enter the area - he is wearing green cultural revolution style clothing. he is also in the crowd cheering at the wild man street fight on Beverley hills wharf. he is also sitting having tea at marvelous tea house (1st floor tea break building) in kowloon.
i'm sure its mao zedong because he even has the mole on his chin.
you can't speak to him he is just a generic non named ncp.
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it looks like he is in many locations throughout the game, i've just seen him in mahjong parlour thirteen wonders dancing dragon building, sixth floor.
also he is a spectator at the acrobat street fight thousand white qrt.
if i see any more i'll make a note.
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he is also a spectator at the greg fight and iron thrust street fight.