3 Sparking Crowns

Hold and Respin, or 'Hold & Win', is one of the most popular core bonus game mechanics in modern slots. The essence of this feature, unlike traditional free spins, is to 'Hold' bonus symbols on the reels and 'Respin' the remaining empty spaces to fill up the screen. This system was popularized worldwide through 'Money Train 2's' 'Money Cart Bonus' and is the foundation for numerous developer-specific brand features like Wazdan's 'Hold the Jackpot™' and Playtech's 'Fire Blaze™'.

A Symbol Modifier is a parent concept that encompasses all types of special symbols that go beyond simply having their own value or substituting for other symbols, to directly affect other symbols and change their value or state. These symbols act as 'commanders' that create variables in the bonus round and generate complex synergies between symbols.