I've found that he was kind of wasted in the voice work he's done for games and movies (forgot the name of the game, but I know he did some work for the monsters in I Am Legend) because they distort his voice beyond recognition. I mean, if you're gonna do that, why bother using him at all? You could get any schmuck off the street..
Thats mostly actually his voice.
Its amazing what he can do with it..
A lot of that stuff he has used on stage in songs.
He did used to use fx pedals on his voice live too though.
Not just reverbs/delays, but in some bungle stuff he used pitch shift and choruses/flangers/compressors and even bullhorns. etc