Here are two games in one, if you want to see it that way. First, spin the reels and try and line up three of the same symbols to win.
Secondly, you need to have a look at the blue area below. Here you will see three vertical rows. After each spin, the results of the first spin are added to these. Now you can bet on these rows as well in the hopes that the same symbols as again.
Heavy Metal also offers a bonus feature, where if you light up the three diamonds, you get 3 free spins at maximum bet.
Heavy Metal Slots details
Type : Progressive 3 Reels, 4 Pay-Lines
Min / Max Bets : $0.50 – $2.00 – Per Line
Jackpot Win : Max bet on winning pay-line
Winning Combinations : 9 + wild
Wild Symbol : The Question Mark ( ? )