Super Fire Rail Express

The Diamond Booster sits above the reels and tracks the number of Wild Symbols that land during play. Each Wild adds +1 to the counter, up to a maximum of 25. Once the counter reaches 25, no additional Wild Symbols can appear until the value is reduced.

During the Hold & Win and Jackpot Hold & Win features, the Diamond Booster can award multipliers of 2x, 3x, 4x, or 5x to Golden Coin and Jackpot Coin prizes. When a multiplier is applied, its value is deducted from the Diamond Counter. The multiplier awarded cannot be greater than the current value of the counter.

The Diamond Counter starts at 5 when the game is played for the first time. If a bonus feature ends with the counter at 0 or 1, 5 is added to replenish it. The counter's value is saved between play sessions at the selected stake level, allowing progress to carry over.

Land at least one Golden Coin or Cash Train Symbol on every reel in the same spin to trigger the Hold & Win feature. The bonus begins with 3 respins, and every new Golden Coin, Cash Train, or Wild Symbol that lands resets the respin counter back to 3, extending the feature and creating more opportunities to collect rewards.

During Hold & Win, only Golden Coin, Cash Train, Wild, and empty positions can appear on the reels. Cash Train Symbols lock in place as they land and remain active until the feature ends. Any Cash Prizes collected during the bonus are gathered once by each locked Cash Train Symbol, with all accumulated rewards awarded at the conclusion of the feature.