Labyrinth is a game of physical skill consisting of a box with a maze on top with holes, and a steel marble. The object of the game is to try to tilt the playfield to guide the marble to the end of the maze, without letting it fall into any of the holes. Some versions of the game feature a suspended maze surface that rotates on two axes, each of which is controlled by a knob. Small handheld versions of the game are sold, with the box being completely closed with a transparent cover on top.