yeah, the jump from 8 bits to 16 bits era were mostly better graphics, and sound. But they are still 2-D, which is still big for difference.
But when the jump from 16 bits to 32 bits ear, this is where the leap is very big, because of 3-D gaming world and how much different and amazing 3-D gaming can be since it\'s the first.
Compare FFVI and FFVII and one can see how much different the game look between the two. Beside a graphic and sound leap between the two, one is 2-D sprite base with limited animation, and the other is 3-D polygonal world base with a lot more animation and how great the camera zoom, rotate on those fight scenes can look and they are very well done.
I didn\'t know Sony refuse to allows any 2-D as there were some 2-D titles for the psone. Like Mega Man X4, Castlevania:SOTN.