We also just got back and got to ride Mission Space! My kids didn't feel the spinning but I could definitely feel the spinning and it was very strange since nothing around me seemed to be moving sideways, too, because the screen that you look at makes you think that you are moving up in the sky, but my body and eyes knew that they were being spun sideways! Luckily, I never felt queazy, just a little off balance for a very short time when I got off the ride.
We also saw one of the smaller gators by the bridge to BTMR!