Monza

Monza was a 1980 prototype pinball machine from Atari, themed around auto racing and evoking Monza's famous racing circuit — the Autodromo Nazionale Monza near Milan, Italy, dates back to 1922. Unusually for a pinball machine, Monza was built as a cocktail table, and it stood taller than a standard cocktail table, requiring players to stand rather than sit to play.

Only a single unit of Monza was ever built, and it no longer exists today. Its solid-state playfield featured offset flippers, two slingshots, three drop targets, two standup targets, a spinning target, and a kick-out hole, with four-player scoring displays built into the back wall of the playfield.

The prototype was reportedly converted into parts for Atari's 1983 title 4x4, though how this was done is unclear since 4x4 is a wide-body upright cabinet while Monza was a cocktail table — it's possible the Monza unit was simply stripped for raw parts. Because no example survives, very little else is documented about Monza's final design or intended gameplay balance, making it one of the more mysterious entries in Atari's brief pinball history.