To the best of my knowledge, nobody's dumped the KOF '95 cart. As for Megaman, are you sure you're not thinking of Ultraman? That's the only other ROM cart game I know of for Saturn. I haven't heard of it being dumped either. Anyway, some information on the cart interface can be found in the SCU manual, and there's information on the RAM expansion carts in Technical Bulletin #47, both of which can be found in the Saturn documentation package at this place.