Clear limits before you commit money
On the reels, the bonus round starts when four or more SCATTER symbols land, and no one can tell in advance how often that will happen. Each spin is random. The result of one session is random whatever the RTP, so a stated RTP describes the long run and says nothing about the next visit.
Every spin on the 8x8 grid pays under the RTP version this lobby runs. That version is shown only in the game rules, so read them before you compare versions. The gap between the two RTP values is small, and it matters only over many spins.
Tumbles on the reels can stack into one payout, yet the maximum win is a ceiling that is reached very rarely. Treat it as the top of the paytable's scale, not as an expected result. No one can predict when a single round will get near it, and the figure gives no sign of how a session will end.