Indeed! It has Snatcher and, uuuuh...
Any recommendations? Think I have Popful Mail and some shmup with metal music, but not much else.
Most of my video-game time is spent on retro-games, especially 8 and 16 bits. Not a big fan of early 3D, and not a fan of interlaced games either (I play on CRT).
Happy to see the SEGA-CD cited : I love this console. This week I was playing Dune on it. Dune is a fantastic example of a game using the a lot of the features of the SEGA-CD to achieve something unique. I know this is a port from PC, but the SEGA-CD version turned out really good. It has many different languages with dubs. Nice videos integrated as the intro and when you travel, which makes for a very chill experience. Story and atmosphere are of course excellent, it is Dune after all.
I highly recommend D&D : Eye of the Beholder. It is a dungeon-RPG that implements Advanced D&D rules. There is a lot of depth to the game, you can create a large variety of characters and progress in many ways, like force opening doors with strength. The game is very challenging, and has some important story choices that matter. Visuals are excellent and sound-design is even better. Music by Yuzo Koshiro is great with techno vibes, a great fit for exploring the vast dungeon. You can hear footsteps and growls of enemies, and it is very well implemented as it tells you how fare they are. This is, again, a game that makes great use of the hardware.
Snatcher is another great pick with excellent sound-design that play to the strengths of the SEGA-CD, a must play.
Lunar, and especially Eternal Blue, are great games. Eternal Blue is quite unbelievable honestly. The videos are absolutely timeless : no trace of artifacts, they are all coded for the hardware and look magnifient (same in Popful Mail by the way). The game is very good too, with a ton of content, excellent pixel-art, a great cast of characters, a touching story, soundtrack by Iwadare is a high note as well with themes that create a strong atmosphere. This is a timeless masterpiece.
Robo Aleste, Bari Arm and Lords of Thunder are my recommended shmups for the console. They all play perfectly well, have great and fun stages, excellent soundtracks. Silpheed is a bit different but it is a must play with the precalculated 3D backgrounds. There is also Keio Flying Squadron that is pretty good.
Fighting games, you have Fatal Fury Special and Samurai Shodown that are ports that retain the original resolution and sprite size from the Neo Geo. They are competent ports. Eternal Champions makes a more complete use of the hardware, but I never really enjoyed the gameplay. Mortal Kombat has a great port too.
I like to list both Taito games : Ninja Warrios and Night Striker. These are favorite of mine, games I replay very regularly.
Core Design deserves a mention as well, as they made a lot of games for SEGA. On the SEGA-CD, I think that Thunderstrike and Soulstar are really worth your time. Thunderstrike is a bit on the easy side once you have understood the gameplay, Soulstar however is hard as nails, but super impressive.
There are two Batman games as well. Returns has super fun vehicle combat, and Batman & Robin is only made of vehicle sections. I really love the later, its visuals are unbelievable, 32 bits territory. It is also a very difficult game, but I recommend giving it a try.
There is a pretty cool Captain Tsubasa game on the Mega-CD too. Played quite a lot of it.
Other games worth noting : Sonic CD, Terminator, both Ecco games, Pitfall (lead dev was on SEGA-CD), Mickey Mania.