The bonus rounds in Sugar Rush are all about the multipliers. Firstly, whenever players land a win on the grid, a winning symbols spot is marked. If another winning symbol falls into that spot, it becomes a 2x multiplier. This then increases by 2x every time another symbol lands there. This will stop once the cascade comes to an end.
Landing three or more Scatters will also trigger the game’s Bonus Spins Round. Three, four, five, six, and seven Scatters reward 10, 12, 15, 20, and 30 spins respectively. During the spins, any marked spots and multipliers will remain on the grid throughout the spins. It is also possible to retrigger the spins by landing more Scatters. They are triggered at the same rate as in the base game. When used in combination with the Cascading Wins and the Multipliers, this round can not only last a long time but can also end up being quite lucrative.
If you want to skip to the front of the queue, then you can use the Buy Free Spins feature, allowing you instant access to the Bonus Round in exchange for an increased stake.