Before the first spin on Sweet Bonanza
Scatter symbols land on the grid at random, and four or more of them start the free spins, but nobody can tell in advance how many spins will pass before that happens. One session can bring many tumbles with small wins or none at all. Whichever RTP version runs, the result of your own session stays random from the first spin to the last.
Every spin lands symbols on the 6x5 grid, and the RTP version running behind it is named only in the game rules. Look up the rules to see which version Rocket Casino runs here. The two versions can return different shares of the stake over a long run, but no single session shows that gap.
Tumbles and multipliers can stack on one spin, and the game caps the total at x21,100 of the bet. Reaching that ceiling is a very rare event, so read it as the upper limit of the game, not a result to expect. Nothing on this page promises that any session will come close to it.