Unleash the Wilds! is the game’s slogan, and that’s where most of its bonuses can be found. You accumulate gold coins that fill up the progress bar and reveal new wilds. The stacked wild, which occupies four spots on a single reel and raises your chances of a winning line, is the first and costs 30 coins.
The second upgrade will include a random multiplier and cost 60 coins. The third and final improvement is the sticky wild, which costs 90 coins and keeps your wild fixed on the reels until you create a winning combination. The sixth reel will likewise start spinning once all three upgrades have been unlocked.