Aftershock Frenzy slot review is loud in every way. The graphics are bold and colourful. The music and sound effects are designed to grab your attention. And the special features are all about making sure the game is exciting as possible. But the game itself is pretty straightforward, and for the most part it is a traditional, classic slot. The game has three reels, each with three rows. The paylines are fixed at five, and you need to match three icons in order to win. So far, so simple. There is a decent range of bets allowed: the minimum bet per spin is 0. The interest comes with the Big Bet and special feature. If you match two feature symbols then you trigger the free spins, during which the reel set shakes, and rumbles as though the game is in the middle of a series of earthquakes. Every spin is now guaranteed to be a winning combination, and you can be awarded up to seven free spins. Win free spins with the double feature icon. The Big Bet requires a bet of 10, 20, or 50 coins for five spins. During these, the double feature icon is replaced by a triple feature, meaning that you can now earn three free spins every time you land on a feature icon. Although it requires a higher amount of risk, given that the stake is higher, the Big Bet allows for larger wins. It also gives a higher RTP, at 97% as opposed to the 95% return on normal gameplay.