Get your speculating caps out, Nintendo is apparently reviving a 'very dead and buried game'.

[The_Liquid_Laser]

What I hope it is: Advance Wars or Punch Out.

However if it has really been dead and buried for a long time, then it could be one of these games:
Wrecking Crew
Duck Hunt
Hogan's Alley
Gyromite
Gumshoe
Popeye
Donkey Kong Jr.
Balloon Fight
Clu Clu Land
Ice Climber
Donkey Kong 3
Kid Icarus (as a 2D side-scroller)
Pro Wrestling
Ice Hockey
Zelda II style Zelda game
Dr. Mario
Startropics
Super Mario RPG partnership with Square/Enix

and last but not least...

Mother 3

Last edited by The_Liquid_Laser - on 17 February 2019