Fire can burn you, but you can see it and try to avoid it. Usually in games, they give you away to avoid it. Ice is kind of scary because you have the cold steam coming off of it. You can get frozen and traped, but really it is not that scary. Water is the worst. If it is deep enought you cannot really see the bottom. You can get trapped and drownd. In some games, the water can be your enemy. Things can hide and come out of the water. It is just bad news.