does ultimate line rider.com exist?
Sorry to say, but your friend is a good liar
There is however new upcoming versions for the Nintendo DS, Wii, and your PC. Which will include many features "unsee" compared to the typical Line Rider! 
Also, don't forget to check out the Mobile version available for purchase today!
I can see using the stylus to make the track on the DS but the Wii might be frustrating because you might have a hand to control and pick up whatever tools and draw with them making sure you're steady i'll probably get the DS version instead.
my friend at school told me there was an ultimate line rider.com and that it lets you add volcanoes that acually spew out lava and catch line riders sled on fire, is this true? If it is how do i get to it, because ive been searching for it for hours.