Mystical unicorn can easily feel like a game which is confused with its own identity, on the one hand it comes across like a classic Alice in Wonderland remake, bunny rabbits, an attractive maiden, woodland mushrooms and the like. Then it goes medieval with castles and a Robin Hood styled gentleman (Complete with a bow and grinning goatee) sitting on the reels alongside the glowing white unicorn of the games name.
The obligatory low value playing card symbols are nicely rendered as Jewels but there is only really two symbols you will care to see appear out of the mist of fairy tale theme music, those being at least 3x Castle scatter symbols to trigger the bonus spins or the dazzling Unicorn wild which replaces all symbols except for the aforementioned Scatter.
3 Scatters will grant you the starting 10 Free Spins and increased chance of Unicorn Wilds; 4 Scatters gets you 20 Free Spins and 5 Scatters gets you 50 Free Spins.
You will be praying for the Castle Scatter in more than just standard game mode on this slot as the bonus free spins are re-triggerable at any time to maximise your win and increase your chances at popping either the minor or major progressive jackpot.