Yeah, that is a thing I like about Oddworld even though it is odd it can still be explainable.
I plan on getting that art book, I really want it. I am trying to get it from Ebay, because the Ballistic website sells the hardback covers for about $40.
Oh, and to the person who said critics would complain about Roid resembleing the Hulk, I believe MO was around before the Hulk.