I have never been nauseous on rides, but FJ was one of the first to give me a touch of nausea. I've been on all the other simulators (soarin, body wars, star tours, simpson, jimmy neutron, spiderman etc.) The simulator parts in FJ are fast moving and sometimes blurry which is a bad combination. If you close your eyes when you start to feel it coming on, you should be alright. The ride movement itself is not too bad