This can only be filled up by landing three or more princess symbols. This can only be filled up by landing three or more princess symbols. The Princess Trinity Bonus is triggered by filling up the meter with winning combos. The three princesses. Triggering the free spins feature can be challenging, but the potential. Take a magical trip into the world of anime with Moon Princess , the online slot from Play'n GO. This slot offers an adventure with a trio of girl heroes. Moon Princess · Moon Princess · Moon Princess Trinity · Moon Princess: Christmas Kingdom · Moon Temple · More Turkey · Morgana Megaways. . This slot offers an adventure with a trio of girl heroes. Moon Princess · Moon Princess · Moon Princess Trinity · Moon Princess: Christmas Kingdom · Morgana Megaways · Motorhead · Mount M · Mr and Mrs Spy · Mr Cash. The three princesses. Moon Princess: Christmas Kingdom is a 5-reelonline slot game with bonus round, bonus spins, instant play, autoplay, video slots, multiplier, wild symbol. Moon Princess is a 5-reel, line online slot game with bonus spins, instant play, autoplay, video slots, multiplier, wild symbol, mobile gaming, magic. Moon Princess is a 5-reel, line online slot game with bonus spins, instant play, autoplay, video slots, multiplier, wild symbol, mobile gaming, magic. Once you fill the meter, you'll launch the Princess Trinity feature. Once you fill the meter, you'll launch the Princess Trinity feature. Take a magical trip into the world of anime with Moon Princess , the online slot from Play'n GO.