This feature is active both in the base game and free spins mode which sees Tetris-shaped blocks fall onto the reels in a variety of different patterns. Hot Zones will need no introduction to those of you that have played Bally slot machines before, but for those of you that haven’t you’re in for a treat.

There is also a crown (identical to the one used in the Crown Gems slot machine logo), a Money Shield with a $ icon, a bell, plus boring playing card symbols of Ace to 9. The Wild, which seemingly features on the reels each and every spin due to the Hot Zones feature, is simply represented with the word Wild in a fantasy styled text, and this can substitute for all but the Bonus symbol – represented by the big green Dragon himself. Jewel of the Dragon boasts an incredible design once you load it with the Dragon in his cave positioned above the reels for a different style than usual, but unfortunately Bally lacked any imagination when designing the symbols for the reels – they simply suck.

Bally diamonds and devils slot machine