Well, uke and tori are on this rollercoaster thingy, they can grab on their seats and try to knock the other person off. You go down a hill, up a ramp, then land on this bouncy platform. Just a little test, so it's not the most visually pleasing thing.
It doesn't make it to the top of the ramp for me, am I doing something wrong or is it a mistake?
It depends. If you changed the gravity settings, it could mess it up. Also, since players can move around they might cause it to slow down, or speed up.