Is a video free slot with 5 reels and 20 fixed pay lines. The game features expanding wilds and bonus game. The bonus symbol is a scatter symbol that grants the bonus game if 3 or more bonus symbols are won. The number of bonus symbols won correlates to the number of free spins granted in the bonus game according to the pay table. In the base game of Børk the Berzerker® the expanding wild only appears on reel 3. In the bonus game the expanding wild only appears on the reels 2,3 and 4 and substitutes for all symbols except the bonus symbol. In the Bonus game a wild on reel 2 always expands.