No Wiki for this one. It appears to be a clone of one of the Radio Shack TV-Scoreboards. These were odd units with a large base made of metal (If I remember correctly) and a second player controller that another person could use. Scoreboard comes with a gun, but it appears this unit does not. As for the name 666, it just happens to be the system's model number. Most of these were just branded as Hanimex TV Game or TVG. Since there are about 20 different units, they identify them by their model number.