Land part of a wild stack in any of the 3 rows at the top of any reel and you'll trigger the Nudging Wilds feature. The reels without the wilds spin normally while the wild reel nudges down 1 position at a time until they eventually fall off the bottom of the reels.
Tiki Tumble also comes with a Free Spins feature which is triggered by landing 3 or more gold mask scatters on the same spin - you will get a 1x multiplier for 3 scatters, 2x multiplier for 4 scatters and a 3x multiplier applied for 5 scatters. At the start of the feature, reels 2 and 4 are filled with wilds. Multipliers are in play here - they increase each time the Nudging Wilds feature is triggered. The feature continues until all the wilds have dropped off the reels.
Tiki Tumble is quite a volatile affair as we went through some lengthy spells where our bankroll went south. There are decent winning opportunities on offer if you trigger the Free Spins feature though where the extra wilds and expanding multipliers can work to magical effect.
After landing an extra stack of wilds, we managed to win over 1,250 times our total stake from a single spin with a 6x multiplier. If you're lucky, you can win up to 3,358 times your stake on every free spin with the increasing multiplier.