I get motion sickness pretty easily, but have never had problems with any of the rides. If you are very sensitive, you might want to carry around extra dramamine or bonine so you can take it before or after rides like star tours and body wars, just in case. You could also try the bracelet type things they make for motion sickness-sea bands? I've heard people who say they work, and people who say they dont, and I've never tried them, but it's worth a shot.