This maybe the stupidest thing you have ever seen.

But i think this kid was haxing while playing. cause in the replay i should have smashed his chest. but this is leg broke and floated threw my middle like nothing.

Lastgod is the last person I know to hack.

Your kick wasn't good enough, since your ankle kinda flopped when you kicked him. And your chest was DMed BEFORE his shin hit your chest, so you were probable ripped apart from your legs.

Its pretty damn impossible to influence the movements or properties of other toris ingame through hacking the game. unless you mouse starts moving by itself, or you start losing files, there were no hacks involved. It probably just a physics bug

See, told you it was stupid.

That was so called "stress break". So that break was due to (rotational) force (you applied) and damge applied (by Lastgod) to your chest joint.

Damaged joints are easier to dismember/fracture than undamaged ones, and even more so in Taekkyon, where you can produce huge ammounts of momentum in instant.