Sequels go either of 2 ways. Good or Bad.
Samurai Showdown > Samurai Showdown 2. Good.
Samurai Showdown 2 > Samurai Showdown 3. BAD.
Silent Hill > Silent Hill 2. Bad.
Mario Bros. 3 > Mario World. Good... but I still love 3 more.
Mario World > Mario 64. BAD. *shudders*
I think some series can only have so many ideas to expand and improve. From then on, it's all a matter of milking the cow.
*cough* CAPCOM *cough*
