How much of Xiang Yu's records in the Chu-Han Contention are actually true?

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Xiang Yu is depicted as a much greater monster than even Lu Bu, Guan Yu, or Zhang Fei;
he is portrayed as something that is almost not human.
Just as the Romance of the Three Kingdoms has both official history and a fictionalized version, is the story of Xiang Yu that we know a fabricated tale like a novel?
Or is it all contained in the official historical records?