Dolphins are a friend of Mario and Luigi's in the game Super Mario World for the SNES. He will only find these creatures on selected water levels. Once he does, he'll usually find them in groups as they jump out of the water, if Mario jumps on one while in the air, it'll give him access to higher grounds. They are always blue, and wear orange and red goggles. Apparently, in the Japanese version of Super Mario World, Yoshi was able to eat these friendly creatures. It should also be noted that in Super Mario Sunshine, Isle Delfino resembles a Dolphin.