Then theres the studios that no longer have a name but joined other SEGA studios like this lot. http://en.wikipedia.org/wiki/Sega_Sports_R%26D
You know Sonic Team Have made lots of franchises.
You know SEGA's AM divisions have made an absolute TONNE of franchises.
Heres just what AM2 (the greatest games division of all time) have made alone http://en.wikipedia.org/wiki/Sega_AM2
Then theres AM1, AM3, AM4 and so on etc etc.







