The antlers are the wild symbol, they will substitute for all of the other symbols, except for the two scatter symbols, to help and form winning combinations.
As mentioned, there are two scatter symbols, a deer against a green background and a deer against a purple background.
If you land five or more of either scatter symbol on adjacent reels starting from the leftmost reel then the Big Bucks Free Games begin. Any purple scatter symbols that trigger the free games are transformed into locked wild symbols for the duration of the feature. You will win five free spins for triggering the feature with five symbols and then an additional five spins for every other triggering symbol. The free spins can be retriggered and this way you can win up to 100 free spins.
The Stampede feature is triggered at random and when it is it will add extra green and purple scatter symbols to the reels. You will see a herd of deer run across the reels leaving scatters behind them to help you trigger the free spins.
The slot has a top payout of 160x for landing six wild antlers or fox symbols along a payline. The badger and the owl can payout up to 120x, while the bird, skunk and frog can all payout up to 80x. The four playing card symbols can all payout up to 40x.