I have seen this before and I know people have talked about it but I am still clueless?
I have a vague recolection of it being a cheat or something.
(None) 1 on 1 Arena: Low Caliber
> (None) 1 on 1 Arena: Low Caliber
> (Event) Neo is in the public domain.
> Neo: Hello, I use UMenuConsole0.

And if it is a cheat why could I still beat him?

I think it means that he's a LINUX user - LINUX with Universal Menu System (UMenu).

Thx mang.... but too bad it wasn't him cheating; that inflated my ego 'n stuff hehe. I was thinkin..."yah, I am a Rune God!"