Mach Rider
Like many video games, Mach Rider was a minor hit for Nintendo in the mid-1980s and then languished forgotten until Smash Bros. revived it. The game is a pretty crude but impressive-for-the-time ride along a twisting track and dodge and destroy the evil giant tricycles until you eventually fail, but it has a couple of quirks.
The first is that it was one of the first games to have a level editor, even if it was only in Japan and very limited in practice there. The second is that it has a vague story (there’s minor justifications for you fighting back against an alien invasion in the various track missions) but no ending. The third and most interesting is that the titular rider has been alternately depicted as male and female (the former being in screens showing a helmeted but clearly male figure and the Smash Bros. Melee trophy using ‘he’ while the latter is a female biker in a piece of official art and a woman in the arcade version that’s implied to be a Mac Rider). I guess the different color riders are different people.
Of course, back in the day I remembered the Mach Rider theme as an alternate stage track in Smash Bros. that I loved and nothing else. Which can be said about a lot of things.