Prototype footage of Sonic Adventure (DC) originally running at 60fps

This is incredible to know!
I'm guessing that the Sonic Team disregarded 60fps later in development, because of the limitations they had on the Dreamcast.
Usually, when a console is brand new, there is still a lot to learn. Sonic Adventure 2 is 60fps, because it came out almost 3 years after
the first Sonic Adventure, meaning in those three years, they probably found a stable way to implement 60fps.

 

Oh, God, that's almost disorienting. Not that it's bad by any means, I'm just too used to seeing this game run at 30FPS.

 

I assume it was suppose to show the level's name right next to it. (Or even level variable considering this is very early footage and the loading screen didn't have the level's name.)