The open mouth head sculpt is for the maximum combo strike pose that is in also the KOF mobile App game. That head should of had the eyes movable because if she is looking left, she could only be posed in that one direction. That would mean everyone that wants this figure would have to pose the attack from that fixed position.
Quick tangent, In fighting games, if your character changes from right to left, the attack direction mirror changes, When my sister was in a championship, before being disqualified for winning (arcade owner pulled the plug literally, then sold the cabinet a week later), she would send the other player launching projectiles to the opposite corner, where they would have a harder disadvantage. It was funny watching grown men in the late 90's throw tantrums shouting "Sthaaaaapp!" , "MauuuuuM!" , or "Time out! NOOOOOO!"
Maybe this one is purple because the company wants everyone to buy the first version and swap out outfits. I wish she came with the fake baby puppet of Andy. I do like the bicep form and elbow bend on this figure. It looks great! Didn't SuperDuck make this set. I have the Tbleague one and she is a short stack.