One of which you'd be surprised wasn't already there.
http://www.nintendoworldreport.com/news/70713/trio-of-titles-added-to-expansion-pack-genesis-library
There will still be additions to the Switch Online libraries before the GameCube drop on Switch 2 in June.
Expansion Pack subscribers have picked up a trio of Genesis games tonight. The games are:
- Super Thunder Blade (1989), a launch title for both the Mega Drive and Genesis that was a follow-up to Sega's beloved arcade shooter Thunder Blade.
- ESWAT: City Under Siege (1990), a side-scrolling shooter developed and published by Sega featuring a police officer who starts as a one-hit dying beat cop that eventually obtains a mech suit.
- Streets of Rage (1991), the original game in Sega's side scrolling brawler series noted for its Yuzo Koshiro soundtrack; its sequel was a launch game for the Genesis library in 2021.