Tyler's transformation wasn't just physical. When Kylie had transformed him into Chun Li, she had also given him some of Chun Li's personal qualities and fighting skills, without really thinking about it. (Kylie was unused to her powers, so her transformations weren't as tight as those of a more experienced sorceress.)
And Chun Li did not meekly acquiesce to evil. She fought it.
Suddenly the thought entered Tyler's mind. One blow. One blow, and it has to be fatal.
The weeping girl turned, as if to beg Kylie for mercy. Without an obvious transition, the turn became a kick. Powered by Chun Li's muscular leg, her foot caught the sorceress under the chin. Everybody in the room heard the crack of Kylie's neck.
That bitch, thought Kylie as she realized what Chun Li was doing. She contemplated all the possibilities for punishing the video heroine, and as she was running through the myriad ways to torture Chun Li in her mind, she died.
In the same motion, Chun Li broke Trixie's horn with a karate chop. Coming to a relaxed stance in front of the transformed unicorn, she spat at Trixie's feet. "You're not worth killing." Chun Li remarked.