3DO was my second choice. Off the top of my head, the games that make it worth it, are Lucienne's Quest, Guardian War, Ice Breaker, Cyberdillo, The Horde, Insector War, Wolfenstein(if only for the redone music!), Snow Job(wish I had kept it, reminds me of JB Harold), Captain Quazar, Battlesport, Out of this World, PO'ed, Return Fire, Road Rash, Trip'D, Syndicate. I think there's some others that I love on it, but, those are the first to come to mind.
My first choice was Jaguar, there's alot of underdog games on it, that are great! And if they ever finish Native, that's gonna be one hell of a good looking 2D R-typeesque shooter! As for what I like on it, welll....
Alien vs. Predator, Atari Karts, Attack of the Mutant Penguins, Battlemorph, Breakout 2000, Brutal Sports Football, Cannon Fodder, Club Drive, Defender 2000, Evolution Dino Dudes, Flip Out, Hover Strike CD, Hyper Force, Iron Soldier, Iron Soldier 2 CD, I-War, Missile Command, Painter, Pinball Fantasies, Pitfall, Power Drive Rally, Protector, Protector SE, Raiden, Skyhammer, Soccer Kid, Super Burn Out, Tempest 2000, Zero 5, Zool 2. Those are the games I own, that I love, but, that's just MHO.