I have personally ridden Mission Space at Epcot just once and hell yeah it made me sick as a dog. There are plenty of warning signs everywhere that this is a high velocity ride and if you’re in any sort of poor health you shouldn’t ride it. It basically takes a NASA centrifuge, adds some nice monitors and other little things and spins you around at around 2G’s of force. For the average person thats pretty intense stuff. After riding it once, I know for a fact that I will never ride it again because I don’t like having that sick I wanna throw up feeling. But if you’re up to it, this ride is perfectly safe and does give you a pretty good thrill!