Toribash
You can upload a sound file. And after you win an aikido match for example you start to make a sound you uploaded.

Always winners of the round before are able.

I got an Hiiiyyyyaaa sound. Like bruce lee
But i dont think that my enemys fear me more now
Kinda yes. But in the tutorial thread you get good advices how to use and a site from where you get some .wav files.

Enjoy