The important bonus elements of the Sync Spin slot are:
It is one of the unique features developed by Synot Games in this slot. The game syncs two random adjacent reels to spin with the same symbols on identical positions on the participating reels. This happens on every spin. These can be extended to all 5 reels during the game.
Like many other slots by Synot Games, Sync Spin, too, has a Gamble feature. So, on every win, you get an option to either collect your winnings or gamble them away to stand a chance to double them.
Once you decide to use the Gamble feature, a new window opens where you will find a card placed face down. You must guess and select the colour of the card. There will be red and black options placed each on either side of the card. Just click on any of the options that you think might be right.
For the right answer, the slot rewards you with double the winnings. However, for the wrong answer, you will lose your winnings. But, you can still play it safe by using the HALVE option, where you just wager half of your winnings to gamble. You can keep the other half of your winnings.