Hong Bao is a 5x4 video slot featuring 50 pay lines. You can activate the free spin bonus by landing 3 or more bonus symbols during the base game. Additionally, there's a Bonus Spins feature that kicks in once you've collected enough Accumulation Symbols. The game offers four betting levels, each providing a unique multiplier for wins involving the multiplier wild symbol, as well as varying the number of initial free spins when the free spins bonus is triggered.