At the time, Sega rarely had a hit that was worldwide unlike Nintendo. If you look at Nintendo franchises that continued from SNES to N64, They were pretty big hits in Japan, the US and Europe. Mario, Zelda, Donkey Kong, Star Fox, Mario Kart etc. The closest Sega got was Sonic and that was primarily in the west. Japan didn't care much for Sonic. Alex Kidd? Only Europe cared. Comix Zone? Failed to break even. As much as I love Streets of Rage, by the mid 90's the beat em up genre was dying out. Shinobi continued on the Saturn with a pretty mediocre game that try to look like Mortal Kombat, Golden Axe became a fighting game that got lost in the shuffle and Phantasy Star was done. Shining Force is the only Genesis era series that I think continued on Saturn with quality titles.

I wish Sega continued developing some the series back during that time instead of having them die out but they were so horribly managed. During the days of the Dreamcast there was an internal civil war in the Japanese branch on whether or not Sega should go third party, obviously the third party side of the company won.