Surprisingly few Genesis games had any kind of save game feature - off the top of my head, there was Sonic 3, RPGs (which were few and far between), and...that's about it?
Playing the 32X port of Doom with no save ability was a pain. The game inevitably crashed on level 16, but it took my brothers and I several entire Saturdays getting that far to realize it. I loved the game, it wasn't until years later that I realized how atrocious a port it was.
Basically, yeah. A few sports games did as well, like some of the NHL Hockey games starting with NHL '95 I believe. (There was a "play a whole season" mode...)
