Contributed by: Phantom Planet
During Frank Dux's victory montage (the bit where he is defeating every opponent and progressing up the ranks) there is one particular shot in which he delivers a spinning roundhouse kick to another fighter's head. The kick sweeps from the bottom left to the top right of the screen and as it makes contact with the guy's face the guy flings himself to the left. Momentum dictates that the man should have spun to the right-the same direction as the kick. Also by sprawling the wrong way you can clearly see that Van Damme's foot missed the guy's head by a good foot and a half.
When Frank Dux (Van Damme) is fighting the big Korean wrestler (the one with the skirt on) in the fight just before Ray Jackson (Donald Gibb) takes on Chong Li (Bolo Yeung), at the end of the fight Dux reaches out and puts his hand on the Korean dudes forehead and pushes him over. When Ray Jackson (Donald Gibb) and the little Asian guy jump up and shouts "ALRIGHT FRANKIE, YEAH WELL DONE". Take a look to the right of the screen and you can actually see the right shoulder of the big Korean wrestler sitting there.