When the character either is, or becomes for a significant portion of the story, an unstoppable god, literally an omnipotent being in creative mode.
With varying degrees of course, but when things like that happen it is distinct.
Does not count when it is at the very end of the story, as it happens often.
Sometimes the character does not immediately win, 99% of the time because of contrivances.
More often than not is a CYOA.