"No roads" turns off the black/white road, so you just see the cliff texture below.
"as-bankcam" makes the camera bank and tilt when the track corners.
YAAP (yet another audiosurf player) (search for it on the forum) will do this for you.
As for the rings and particle textures, I've no idea, might be stock, might not.
EDIT: tbh the ring and particle textures look like stock ones. Just use YAAP as above.