Compare the backglass artwork to the magazine cover of the July 1978 issue of Heavy Metal magazine, attributed to artist Philippe Cazaumayou. Pictured in this listing is a cabinet having a bottom panel design resembling a brick wall. We do not know how many came from the factory with this "brick bottom". The "brick bottom" shows up on other games made in 1980: Williams' 1980 'Firepower' and Stern's 1980 'Seawitch'.