Abstract: A pinball machine incorporates a ball playing field that may be varied, as by the user, for heightened interest in and attraction of the machine. The machine includes multiple deck elements removably carried by a support for the machine. These deck elements may be rearranged and replaced by substitutes. Different obstructions are typically carried by different deck elements so that a player or owner may rearrange the deck or play surface to change the playing field, and thereby alter the challenge of the game, at will.