3 Lucky Chong Tian Pao

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™'.

Multi-Mode Free Spins refers to a structure where two or more independent free spins bonus rounds, each with different trigger conditions, internal rules, and potential, exist within a single slot game. This concept is different from 'Selectable Free Spins', where the player 'chooses' one from several menus. Instead, it aims to provide a rich experience, as if multiple different bonus games are hidden within one game.