Each spin will be accompanied by a specific win depending on the value of the symbol, but the key responsibility lies with the multiplier scale on the left side of the screen. The present values (x1, x2, x5, x20, x100) will be reached if you get a sequence of wins from the same symbol. As you can see, when you get the same symbol for 5 spins in a row, your multiplier will reach x100. The feature has a warning: you will not be able to change your bet during the XtraStreak sequence, otherwise, the multiplier will reset to x1 again, and you will lose progress.