The only rides that my scaredy-cat 9yo won't do are the Hulk and Dueling Dragons. He will do Dr Doom's Fearfall, but I can see a child not wanting to do that. The rest of the rides are fun and not too scary for the most part. If she doesn't like flume rides she wouldn't like the Dudley flume at IoA since there is a steep drop. Same for the Jurassic Park ride. My son does do those rides, but has no desire to do roller coasters that go upside down.