Is there anything important to save to the memory card in fighting games on MVS?

In any of the fighting games for the MVS is there anything that would make the memory card necessary? like unlockable characters, high scores, or anything like that? Or would it only be good for saving the screen position? I know in the Metal Slug games it lets you start on any level you previously reached, are there any other games that save anything more than your position?

Thanks.

Getting through RB2 to get Alfred isn't an easy task. Nor is usually getting through the game without losing a round which is often required to seeing as special ending ect.

Often, neo games will also let you access other things if you've gotten the flags for them saved on a memory card.

I'd never get to Geese in AOF2 without a memory card.

Also, Neo Turf Masters has a GREAT use of the memory card (it keeps track of your statistics).

Alright thatnks. I was hoping it wasn't that necessary since my 2-slot ended up being a MV-2B with no memory card reader on board.