Ballsy is Wipeout's mascot who first appeared in The Wipeout Bowl. He made cameos in many episodes since. He was last featured in Season 7, the final season.
His voice actor has been unknown for many years, and is still to be found. It appears that his voice has been chipmunked (sped up).
Ballsy made history in The Wipeout Bowl, for being the first and only non-contestant to try the Killer Surf on-screen.