Where are the rigid bodies in 2.5?

Hi, I cn’t find the menu to apply rigid body properties to an object in 2.5.
(mass, damping, rot. damping, bounds, etc.

Where are they? I’d like to try a sim in 2.5.

Thanks

At the top of the blender window change from Blender Render to Blender Game. Then look under the physics tab (far right button)

Richard