Not Spaceghost
Spaceghost
I don't think it is. The N64 one has way too much Anisotropic Filtering on the floor.
They're definitely real because that was basically what the difference between rayman 2 on the ps1 and rayman 2 on the n64 looked like as well.
Check it out.
PS1 Intro
N64 Intro
For a scene comparison go to 1:45 on the PS1 version and 1:35 on the N64 version and you'll see the HUGE difference between the two.