Despite not offering current and one generation behind games, Nintendo has attached the nostalgia as value with Nintendo Switch Online Service with a built collection of NES and SNES games along with online multiplayer capacity and then in 2021 the "+ Expansion" to add Nintendo 64 and Sega Genesis.

More games for Sega Genesis actually are the addition for the Nintendo Switch Online + Expansion and it includes:

  • Mega Man: The Wily Wars - A Mega Drive exclusive Megaman game which is actually a collection of the remakes of the first three Mega Man games, alongside a new game called Wily Tower, only unlockable with a completed save file. 
  • Comix Zone - A 1995 beat 'em up video game developed and published by Sega for the Genesis. It is set within the panels of a comic book with dialogue rendered within talk bubbles and sprites, and backgrounds possessing the bright colors and dynamic drawing style of superhero comics
  • Target Earth - Launched in Japan as Assault Suits Leynos in 1990, takes place in the middle of a war between Earth (and its colonies) against a cyborg army returning from the farthest reaches of space.
  • Zero Wing - Never released on our market (officially speaking), is a 1989 side-controlled shooter where you control the ZIG space fighter craft, players assume the role of protagonist Trent in a last-ditch effort to overthrow the alien cyborg CATS. 

The games are already available.