As seen in the video below and a couple of others I saw on YouTube, it's more than just the opening.
There's nothing from the PS1 game at all. Everything is brand new!
Did you mean this one?
I actually like it, there's a lot to keep somebody very interested, specially if they're a Rider fan.
The little scenes where he is riding inside the tunnel looks like it came from the opening of the PS1 game. I might be overseeing things though.
Yes, this is the one. I am not a fan of Pachinko (mostly because I really don't understand how can I make money with this thing xD) but it is a good experience to have if you even go to Japan. Just bring some ear plugs, its VERY noisy xD.