A mechanical spinning robot toy includes a top section and a bottom exposed outer gear section. The top section resembles a robot possibly including a head portion and a body portion which may be integral. Any of a variety of arm-like appendages extends outward from the body. The spinning drive mechanism is within the top section. The bottom section has teeth or cogs capable of meshing with another gear or a rack on any of a variety of accessories to move the robot along a track or to animate the accessories. A lower weighted convex surface portion in the bottom biases the robot upright and facilitates spinning of the robot upright. The top and bottom sections are frictionally fit together to rotate or spin together and to spin separately with respect to each when either the top or bottom sections are not allowed to spin.