Decided to take a look through the Universal Orlando Riders Guide on their website, and nothing I noticed seemed to be overly restrictive compared to what I expected. While I didn't notice any rides that allowed 2 legs instead of one arm and one leg as Cedar Point does for a handful of rides (or both arms in leiu of full legs), I don't find the omission surprising, and if I did not already know such exceptions existed in CP's guide I would have been surprised to see that listed as an option. They only require one arm, and only in a few instances must it be "natural," and not a prosthesis. This makes sense in order to maintain the expected proper riding position for most all of the rides. In fact, in going back to take another look, Universal doesn't specify any more than two extremities (one arm and one leg) as necessary, whereas Cedar Point specifies needing at least 3 functioning extremities for many attractions, including kiddy/family rides like Woodstock's Whirlybirds (a miniature teacups ride). Heck, outside of the roller coasters, Universal seems to only require a partial leg that extends to or beyond the edge of the seat (so an amputation at or below the knee), which is more inclusive than Cedar Point for even their smallest and most tame rides. So really, I would say that Universal provides a much more accommodating situation than Cedar Point, all things considered, and probably does so compared to most any other US park.