Rich T- I prefer the Orange version of Mission:SPACE, but I’ve always been pretty good at not experiencing nausea/dizziness as the result of a ride. Some members of my family who are usually pretty good with motion sickness felt a little sick after their first experience on Mission:SPACE back in the days when you could only ride the Orange version. So I would suggest that you maybe try the Green version first and see how you feel afterwards and use that as your gauge as to whether you want to try the Orange version or not. Anyone else reading this who has tried Mission:SPACE should definitely chime in and share their experiences and advice too!