The title says it all… I’m working on a new project and trying to make a 0 gravity arena the shape of a sphere. Only problem is id like the players to walk on the sphere and be oriented to the wall they are on so they can run on the entire sphere, almost like sonic on his little loops. 
Anyone have any clues on how to do this; I also need to figure out a way to simulate a slight gravity towards the wall they are oriented to, so they may jump off and fly through the sphere.