His balls

Matt decided to protect his balls, of course. It was his most delicate area. He shielded his groin area with his hands.

Surprisingly his opponent was not going for his balls, Matt's opponent jabbed him in his neck. She must've used some kind of special technique because Matt was having some difficulty breathing. He quickly stepped back and took a few seconds to reclaim his focus.

A few seconds was all Matt had since his opponent came rushing for him once more. Matt had no idea what to protect so he decided to go on the offense instead. He calculated where his opponent would hit from and sent his fist flying but all he hit was the air. Matt hadn't seen his opponents footwear but he definitely knew what she was wearing as her leather boot connected with his right testicle. It's almost as if she was trained to fight in the dark specifically.

Matt yelled in pain and quickly took a step backwards once more in hopes to reclaim his focus but his opponent wasn't gonna let him do that this time. She jumped on Matt's shoulders and used her legs to pull his head making him fall to the floor on his back with a loud thud. All Matt could do was groan in pain, he couldn't see her and had no idea where she was.

Before Matt could choose whether to stand up, stay still or anything else, the ninja girl put one of her heavy leather boots on his neck making him unable to stand up. Matt knew where she was now but he could not retaliate, her boot made it unable for him to breathe and he couldn't focus on anything else. She used her other boot to kick him in his abs repeatedly, kick after kick after kick until Matt started feeling a numbness. A few dozen kicks later she stopped because she noticed Matt had passed out from not being able to breathe. She walked away without saying anything.

Game Over!