I've never been motion sick before, but the tutorial made me really motion sick because of the static text in the background. I'm sure this will fall on deaf ears, but maybe you'd change it to a fade-in effect instead for the people sensitive to how it is now.
It's too bad that I'm being judged by the amount of movements. Sometimes I just like to pull em around for a better view or just for the sake of pulling them around lmao. Great game though, I'm very picky when it comes to flash games and this one is super fun.