This kit is a licensed product to "upgrade" the score display and speakers for Williams' 1991 'The Machine: Bride of Pin�bot'. Once installed, the only visible difference when looking at the game when not turned on is the Dutch Pinball logo on the speaker grills. When the game is turned on, the display between the speakers will be DMD instead of alphanumeric displays. This kit as sold has undergone various improvements such as a change from a monochrome DMD to a color DMD and the addition of a speaker improvement which was subsequently not put into production. We have contacted the manufacturer asking for a chronology of the different combinations that were sold and that might be seen on any games. We received some substantial information to correct and enlarge our information presented here. Unfortunately, this information was submitted anonymously so we cannot contact its author with our questions seeking clarification.