Land mountain scatter symbols on at least half of the game reels to trigger the Free Spins bonus. The presence of three scatters will earn you ten free spins. Land scatters on four, five or all six reels to unlock 15, 20 and 25 free games respectively.
The best bit is that during your free spins, whenever a wolf power wild symbol lands on the reels, it expands to fill entire reels. Ideally, you’ll get lucky and fill all six reels with wild wolves for some huge payouts.