Looking at just universal orlando because I don't know the kraken, you are better off with the ice don't you think. fire is rough, hulk is awsome but fast at the beginning that might scare him. Just try to go up the exit and go into the re-ride line so he doesn't have to go through the scary castle. It is funny, my first rollercoaster was the Hulk in 8th grade. I went on a field trip and my friends talked me into it. MY friend was like, "come on ed this will be fun don't worry about a thing, it is smooth and will be a blast and I will go on with you." I said fine so we went. I got on it and we started moving. I asked what it feels like going upside down coaster like this one. He said," I don't know, never went on one before." Here I am scared half to death and the Hulk roars and we are shot out of the gamma ray not being able to react to the shock at first. Then we went upside down for the first time and at that second I was in love. No guts no glory!