Goro robot, with Mappy taken apart.
Namco produced two maze-solving robots in 1980 and 1981. The robots are the inspiration for the game Mappy (and they look very much like the game's characters)
Goro[]
Goro was first created in 1980 and weighs 27kg (59.5 lbs.). Goro is one of the largest robots by Namco and is worth 40 million yen.
Mappy[]
Mappy was created in 1981 to accompany the Goro robot. Mappy is smaller and more compact only weighing 4.3kg (9.4 lbs.). Mappy is worth 20 million yen. A toy version of the robot was released, with a customizable maze, ad a Mewkey pawn that acts as a goal