Need Help With Creating Sphere(Ball) for the Game to Take Place

Hello!

I’m trying to create a game where multiple players can move throughout the inside of a Sphere(a glass ball that is empty inside). I am having trouble creating the mesh for the game to take place in. Any help would be appreciated!

You just need a sphere primitive and to reverse the faces.

I tried but there seem to be a few minor errors happening. Maybe I had a little problem when I followed the instructions.
Fun Games