It's hard to picture the gaming world without the following stars, but if things had gone differently, we wouldn't have any of them. No heroic plumbers. No blue hedgehogs. No exploding green foes, no passive-aggressive AIs, and no legendary pocket monsters. From that point of view, the following characters' debuts are minor miracles. They might have started as little more than happy accidents, but you know what? We'll keep 'em. They're great.