This simple arrangement uses the rigid body physics in the integrated Blender game engine. To see it work, move your mouse into the 3D View and press P. The game engine will start and you’ll see the Suzanne head and the cube fall on to the plane and bounce around a bit. You can quit the game engine by pressing Esc. If you edit either of these meshes, and restart the game engine, you should see totally different results. Go ahead and play with these settings. It’s nearly addictive.
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