Head to the Emerald Isle with our review of Rainbow Riches Leprechauns Gold from Barcrest. Head to the Emerald Isle with our review of Rainbow Riches Leprechauns Gold from Barcrest. Featuring very small betting limits and only up to six small prizes per bet (completion bonus included), this online game won't pay any huge. Play the Bonus Spinner for free spins fun and the Wild Rover. . Head to the Emerald Isle with our review of Rainbow Riches Leprechauns Gold from Barcrest. Play the Bonus Spinner for free spins fun and the Wild Rover. Featuring very small betting limits and only up to six small prizes per bet (completion bonus included), this online game won't pay any huge. Play the Bonus Spinner for free spins fun and the Wild Rover. Featuring very small betting limits and only up to six small prizes per bet (completion bonus included), this online game won't pay any huge.