Beneath the stage, when Wu Li saw Zhao Lixin use both hands to support Siti's chin, he was momentarily stunned.
Xingyi Fist has a killing move called 'Old Ape Hanging Seal,' which is very similar to Siti's flying knee at that moment; the flying knee is the 'Hanging Seal.'
There is no Monkey Form in Xingyi, but there is a Monkey Form, a variation of the Monkey Form; Monkey Form is agile, and Monkey Form is solemn and murderous, even more fierce and violent. The move 'Old Ape Hanging Seal' captures the conception of an ape leaping through the forest canopy, with the edge of a killer intention, bursting forth with all its might as it pounces!
At this moment, Siti's power boost from self-hypnosis and blood energy stimulation was nearly at its limit. He knew this strike was critical, win or lose. Thus, he mustered all his strength, releasing it in one breath. Both the conception and the action of the move resembled 'Old Ape Hanging Seal.'