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Red I is an enemy that has appeared only in Super Paper Mario, in Castle Bleck. As the name implies, it is related to Mr. I, except it has more of a red hue. Like their relative, a Red I attacks by shooting lasers from its pupil but a Red I attacks much more faster than a Mr. I. They are impervious to damage, but Mario can make them dizzy and defeat them by running in a circle around them. Alternately, Fleep's ability also works.
Its name may be a reference to the Red-eye effect seen in flash photography, or the medical symptom of red eye, which is caused by illness, injury or even fatigue (this last one also providing the name for late night "red-eye" flights, which is another possible source for the Red I).
Names in other languages