15 Super Castlevania IV (SNES 1991) (highest-ranking game that you could beat in one sitting)

I assume you mean “beat in one sitting the first time you play it?” Mario 3 has no saves. To get the “best ending” in Super Metroid you have to beat it in under 3 hours.

I own a couple of your “?” games:

76 Final Fight (1991)? - This is still diverting enough if that’s the kind of game you’re in the mood for. I’ve never beaten it without the code that gives you more lives. Also, why do you need a code for “extra joy,” the hilarous term for making one of the buttons do the special move, rather than requiring a combo to do it. There are six buttons on the controller, and it otherwise only uses two of them.

90 Mortal Kombat (1993)? - I only own this because someone gave me an extra copy they had or something. I always thought it was garbage.