The Genesis Mini 2's release date of October 27, 2022 as well as the full list of games were revealed yesterday. If you don't want to watch the video, you can also see
the full list on the official site, or
the full list including all regions on Wikipedia.
It's advertised as having "over 50 classic titles" but it sure looks like there are 60 games there (actually 61 with Space Harrier), including seven games listed as "BONUS!" on the official page.
The BONUS!es include:
- Devi & Pii (previously unreleased)
- Fantasy Zone (a newly developed port)
- Puyo Puyo Sun (a newly developed port)
- Space Harrier II (though originally a launch title, this version is enhanced, the first game is also included)
- Spatter (a newly developed port)
- Star Mobile (previously unreleased)
- Super Locomotive (a newly developed port)
Besides Genesis games, there are 12 Sega CD games, with Sewer Shark exclusive to North America and Europe, but the Japanese Mega Drive 2 has nine more Mega CD games (or ten? Not sure what the deal is with Romance Of The Three Kingdoms III being listed for both the Mega Drive and the Mega CD), including two Lunar games!
All in all, there are 38 games (39 including Space Harrier) that appear on both the Western and Japanese versions. The West additionally has 22 exclusives and Japan has 23 exclusives (I guess that means they have one more game), so there is a pool of 83 games (84 including Space Harrier).
I don't know if it would be worth adding them to the list on the front page because I don't know if there's much interest... the first Genesis Mini hasn't been fully mapped yet...