Ace High (Extended Play Prototype)

The Ace High (Extended Play Prototype) is a 1957 Gottlieb prototype, designed by Wayne Neyens with art by Roy Parker, built as the Add-A-Ball counterpart to Gottlieb's standard replay game 'Ace High'. Add-A-Ball (extended play) games rewarded good performance with extra balls rather than a cash payout, a format widely used to comply with local gambling laws.

The machine carries a cards/gambling theme typical of Gottlieb's mid-1950s output. A bill of materials examined by researcher Steve Young is dated January 18, 1957 — about four weeks after the BOM for the standard replay version — and lists a Delay Unit as part of the added mechanism, suggesting at least one unit was built.

Beyond this documentation, little else is recorded about the prototype's specific gameplay details, but it belongs to a small, well-documented group of 1957 Gottlieb Extended Play prototypes, alongside games like 'World Champ (Extended Play Prototype)'.