The first step to success, says Linden Rhoads of Virtual i-O, "is moving away from a helmet paradigm to a glasses paradigm." Glasses are lighter than helmets, and that helps reduce motion sickness -- too much weight can throw off the brain's sense of how to move. In the trade they call it "barfogenesis."
2003 — David W. Knight, "'Wolverine's Revenge' offers one heck of a ride," Indianapolis Star, 2 May 2003:
Camera control is especially tough to learn and can leave players with a case of barfogenesis.