Filling all 9 positions with the same symbol awards the Bonus Wheel feature where multipliers and symbol upgrades can be won. The game also offers a re-spin feature that is awarded when two full columns are filled with the same symbol, locking those symbols in place for a better opportunity to access the Bonus Wheel feature and bigger wins.Powerspin is part of the Jackpot Stars series and features a Jackpot Stars side game.