Is there any way to enable rigid body physics on an object while the game is running? There’s nothing in the GameLogic reference about it, and I don’t think there’s a built-in actuator for it. I’d rather not have to replace the object with a new one and copy its velocity, rotation, and position, etc. Thanks for any help in advance!
In the new version (2.47) It’s an option in the “Edit Object” actuator 
Didn’t see that earlier. It, unfortunately, doesn’t seem work.
I stuck an icosphere above a plane set at a 45 deg angle, and set it up the icosphere to become a rigid body when it contacts the plane. When the ball fell…it just slid. No luck there.
Maybe I’m doing something really stupid. I haven’t been with the game engine for long.
well you cant enable/disable rigidbody using bullet phisics engine, you have to switch to sumo (idk if it suports convex hull bound tough)
I’m sorry, but I think it’s crazy that one can’t enable and disable rigid body in game.
Guess I’ll have to go write another script