Walking Wilds is not only the title of this slot, but it’s also one of its most important features.
Whenever walking wilds appear, rather than simply stay in place, they’ll travel across the board in one direction, until they reach the edge, turning any symbols they encounter along the way into wilds themselves. And in the Final Stage level of play they can also assume multipliers for even higher power and value.
When they’ll appear and which direction they’ll take, however, is entirely random, just like any other element in slots. It’s part of the RNG mechanism that creates fair play that governs it all, so there’s no way of knowing; only hoping.