The latest additions to the service, which are viewable in the trailer below, are Space Harrier II, Shining Force II and Sonic the Hedgehog Spinball.
The Mega Drive / Genesis library is only available to players who are subscribed to Switch Online’s Expansion Pack tier.
Sega Genesis - April 2022 Game Updates - Nintendo Switch Online
Launched last October, the Switch Online Expansion Pack added Mega Drive / Genesis and Nintendo 64 games to the existing NES and SNES libraries available as part of the standard membership plan.
In March, Alien Soldier, Light Crusader and Super Fantasy Zone joined the Mega Drive library,
Footage of what’s claimed to be a leaked Nintendo Switch Online NES application was recently posted online, possibly revealing plans for a number of upcoming releases.
The footage reportedly compares the current Switch Online NES application with a leaked “master version” that has a build date of October 2019.
The latter contains all of the currently available NES Online games plus unreleased ones, including Tetris, Castlevania, Galaga, Pac-Man and Mega Man titles.
Official Game Boy and Game Boy Advance emulators for Switch seemingly leaked online earlier this month.
Both emulators appear to have been developed by Nintendo‘s NERD (Nintendo European Research & Development) team, which is based in France and often handles emulation software for official Nintendo products.
The emulators were reportedly dumped from a Switch console, suggesting that work may be underway to include the classic handheld systems as part of Nintendo Switch Online.
The leak also appears to list 40 Game Boy Advance games included in the app, such as first-party titles The Legend of Zelda: Minish Cap and Metroid Fusion, and third-party games Castlevania: Aria of Sorrow and Mega Man Battle Network 2.