Ao-chan does the voice of new character Platinum the Trinity in the fighting game BlazBlue Continuum Shift. The character has been added via the network as of Tuesday (Xbox 360) and Thursday (PS3) of this week.
In this trailer, you can see and hear her fighting Sugita Tomokazu's character, Ragna. Two highly distinctive voices. Only a bit of his, and little more of hers, but you can hear Ao-chan letting it all hang out in a way she can't in anime.
The video is clearer viewed on NicoNico Douga.