Super Mario is 64
Starring
The Super Mario Brothers et al.
Idea
Super Mario has just turned 64.
He can’t afford to retire, Peach has left him again and his brother Luigi is still a green turd.
Fast approaching breaking point, and maybe just a tiny bit bored, Mario calls out Bowser for one last fight.
His pre-duel medical, however, finds some irregularities.
I think you know where it goes from here.
Problems
This is probably too dark for Nintendo.
Solutions
Lighten the mood by pitching it to the original Super Mario Brothers score.