This game is a non-commercial home version of the 1972 EM version but only the art theme is the same. The score reels of the commercial version were replaced with a single multi-player digital display. The playfield layout is similar to Bally's 1976 'Hokus Pokus' but without its center spinning target and the ball return gate. On the back of the cabinet is the on/off switch, a circuit breaker button, and the volume control. This is the same playfield layout as Bally's 1977 'Captain Fantastic & The Brown Dirt Cowboy', Bally's 1978 'Galaxy Ranger' and Bally's 1978 'Evel Knievel', but with different artwork. Note below that this home game was sold with three different manufacturer model numbers, with the last model 614-5000 having a different generation of CPU and power supply. Series I: (Using CPU board 0606-00905, power supply board 0606-00906C) 606-1000 Fireball 614-1000 Evel Knievel 614-3000 Fireball Series II: (Using CPU board 0614-00913) 614-2000 Captain Fantastic 614-4000 Galaxy Ranger 614-5000 Fireball The pictures shown here of individual circuit boards came from a Series I Fireball, Model 606-1000, game serial number 4906. The Logic Board is located in the backbox. The board under the upper playfield is marked "Top Playfield" and the board under the lower playfield is marked "Bottom Playfield". The power supply board is located at the back of the lower cabinet. We show a 1978 Sears ad with a price of $645.00 and also an undated Sears ad with a price of $695.00. According to a brief mention in a year-end review in Cash Box, Dec-31-1977 page 143, a "home pin" 'Fireball' was placed in the Plains, Georgia home of President Jimmy Carter in October of that year, purchased by his son, Chip. Actually, the game was the commercial version. See that listing for a picture of Chip playing it.