This game is designed to take full advantage of the real estate offered by Ainsworth’s premium A640 cabinet—particularly, its 42-inch vertical flat-screen monitor. The main feature in the game fills that space with three separate reel arrays in a potentially lucrative free-spin bonus.
The base game is a highly volatile five-reel video slot, available in 50-line configuration at the penny and 2-cent denominations and with 25 lines in nickel and 10-cent denominations. There are two top progressive jackpots, and three static bonus awards that come into play during the jackpot bonus event.
The main game event is the Stacked Up Feature triggered by three or more scattered Stacked Up symbols. This triggers 10 free games, during which any wild symbol transforms all symbols on that reel into wilds.
If three Stacked Up symbols appear during the feature, a second reel array appears stacked above the primary reels, and five free games are added to the remainder of the free spins. All remaining Stacked Up free games are played out on both reel sets, unless one of the spins lands another three Stacked Up symbols. In this case, a third stacked reel array appears, and remaining spins—plus two additional free games—are played out on all three reel sets.
When diamond symbols appear in all positons on the first two reels, it triggers a Jackpot Spin, with the two stacked-diamond reels remaining in place. If no other reels fill with diamonds on the spin, the Mini Bonus of $5 is awarded. If the spin results in diamonds in every position on the first three reels, the Minor Bonus of $10 is awarded. The $40 Maxi Bonus is triggered with four diamond-filled reels on the Jackpot Spin.
The progressives can be awarded either on a primary-game spin or Jackpot Spin. Diamonds in all positions on all reels return the Major Jackpot, resetting at $500. “Black Diamond” symbols in all positions on the middle reel with diamonds covering all other reels return the top progressive, resetting at $5,000.
Manufacturer: Ainsworth Game Technology
Format: Five-reel, 25- or 50-line video slot
Denomination: .01, .02, .05, .10
Max Bet: 500
Top Award: Progressive; resets at $5,000
Hit Frequency: Approximately 50%
Theoretical Hold: 4%-15%