Pretty much all the meme games except Dungeon Explorer. Didn't really like it for some reason. >9000 shmups, Castlevania, Ys, Bonks, Valis, Popful Mail
If you can into moon there are a fuckton of good jp exclusive RPGs, strategy games, and visual novels. There's also a ton of random fightan games if you're into that, although that's really not where the PCE excelled.
Some good games I hardly see mentioned are Faussete Amour, Mamono Hunter Yoko, Shapeshift, Doraemon, Pop'n Magic, Kaizou Choujin Shubibinman, Gayvan, Conan, Götzendiener.