I how how terrible 3DO Doom port was but the reason of its failure would lie in bad optimalization instead of console's weakness. So could 3DO handle with early full 3D shooters like Quake, Terminator: Future Shock / Skynet, Goldeneye 64, Jedi Knight or Turok? Or at least, with the most advanced 2.5D spritefull ones like Duke Nukem 3D, Blood, Shadow Warrior or Redneck Rampage?
I've been playing through PO'ed lately and that one seems to be pushing it a bit. I've actually run into a bit of slowdown at some points and there have been a lot of weird issues with the textures stretching. I don't see any possible way to get something like Goldeneye to run well on 3DO and keep it the same game. I'd imagine it'd be able to do Duke Nukem 3D fairly decently.
2. High-detailed 2D games
Commandos: Behind Enemy Lines, Abe's Exodus, Abe's Oddysee, Diablo, Fallout 1&2, Blood Omen: Legacy of Kain, Mortal Kombat Mythologies: Sub-Zero
The 3DO already does have some stuff like Flashback and Out of the World, which I'd think would fall into this category.
4. 2D Fighting Games
Street Fighter 3 saga or Garou: MOTW are rather impossible but SF Alpha's (and the rest of CPS2 games generally), arcade-perfect Killer Instinct?
If they could shove SFA onto a Super Nintendo cart, I'd imagine the 3DO could do it.
5. 3D Fighting Games
Untextured Virtua Fighter is the border? Or maybe first Toshinden, Tekken, Virtua Fighter Remix, FX Fighter Turbo, mega downgraded War Gods / Mortal Kombat 4?
Didn't Sega manage to shove a version of Virtua Fighter onto a 32X cart? If that's true, the 3DO could probably do that. The world would probably be a better place if War Gods had never been released though.
Resident Evil, Mario 64, Crock: Legend of the Gobbos, Mario Kart 64, Chocobo Racing?
Resident Evil? The 3DO's got Alone in the Dark and Dr Hauzer.
Also, Ildjarn? Like the sonic blur tape deck fell over black metal band? I haven't heard that name in a looooooong time.