The aircraft depicted in the artwork cover several generations of technology at the least, ranging from biplanes of the past to futuristic alien spaceships. Attract Mode instrumental music can be enabled by the operator, a choice between "The River Kwai Marsch" and Lili Marleen. The schematic diagrams are marked E.F.O. which stands for "Electr�nica Funcional Operativa" (Functional Operative Electronic). It was the company who designed the entire electronics of most (if not all) Playmatic machines.