As long as there are still Zillard Wild upgrades to be unlocked, Gold Coins may appear in the bottom right-hand corner of any symbol on the reels. If they land on the same spin as a Zillard Wild they are collected and contribute to the Zillard Wild Progress Bar.

Unlock sticky, stacked, increasing multiplier Wilds! As Gold Coins are added to the Zillard Wild Progress Bar, a series of three Zillard Wild upgrades can be unlocked. For each consecutive win it participates in, the Win Multiplier increases to up to x20. - Upgrade #1 turns the Zillard Wild into a stacked 1x4 symbol. - Upgrade #2 adds a random multiplier to the Zillard Wild. - Upgrade #3 turns the Zillard Wild sticky. It will remain locked on the reels until it participates in at least one win, followed by a non-winning spin.

Unleash the thunder! When a Zillard Wild lands on the reels without triggering a win, Zillard roars to summon Thunder Wilds. This activates a guaranteed win! Between 3 and 6 thunder wilds can drop before the 6th progress reel has been unlocked, and between 3 and 9 after that. These Wilds substitute for all paying symbols.

Listen to the roar – it’s time to upgrade! Collect 30 gold coins to unlock the first upgrade, 60 gold coins for the second, and 90 gold coins for the final upgrade. Until all three possible upgrades have been unlocked the Zillard Wild Progress Bar appears to the right of the reels. Once all three upgrades have been unlocked, that Progress Bar turns into a 6th reel, on which only high-paying symbols can then land.