Thunderstruck II has 3 special features in total – a wild symbol, a Wild Storm feature and a free spins round.
The wild symbol is the Thunderstruck II game logo and this will replace other symbols on the reels to form new winning combinations and create bigger cash prizes. The only symbol on the reels it will not replace is the scatter symbol.
Another feature in Thunderstruck II is the Wild Storm feature. When it’s randomly triggered, Thor’s lightning bolts will transform up to 5 reels into wilds. Get the maximum 5 wild reels and you could potentially win up to 8,100x your stake.
Lastly, we have the free spins bonus round which is named The Great Hall of Spins. This is the big bonus game in this slot and the longer you play, the bigger these bonuses will be. To trigger this round, you must three or more scatter symbols which is Thor’s hammer. Every player will start at the Valkyrie level and after 4 triggers playing at this level, you’ll then move on to the Loki round from the 5th trigger and so on so forth.
Valkyrie – The first to fourth triggers will see you playing the Valkyrie round where you can win up to 1,383x your stake per spin. You will be awarded 10 free spins plus a 5x multiplier and there is the opportunity to retrigger spins, with 20 up for grabs.
Loki – The fifth to ninth triggers will see you playing the Loki round where you can win up to 8,100x your stake per spin. You will be awarded 15 free spins plus there is a Wild Magic feature that kicks in. Watch the third reel as this is where the Wild Magic symbols will land and turn into wild symbols to create more winning combinations and award cash prizes. Landing more scatter symbols on your reels will also award you more free spins with the opportunity to get a further 4 free spins.
Odin – The tenth to fourteenth triggers will see you playing the Odin round where you can win up to 3,320x your stake per spin. You will be awarded 20 free spins plus there is a Wild Raven feature that kicks in. The Wild Raven feature sees symbols being transformed into multipliers of 2x and 3x by Odin’s Ravens. Landing two ravens will award you a 6x multiplier.
Thor – From the fifteenth trigger, you’ll start the Thor round where you can win up to 1,383x your stake. Here, you’ll enter The Great Hall of Spins. You will be awarded 25 free spins plus a Rolling Reels feature. There is a multiplier attached to your wins which starts at 2x and increases with every winning combination up to 5x.