Each time 3 or more Scatters land during the bonus spherical, an extra 5 free of charge game titles are awarded. This may lead to additional winning combos and afterwards added tumbles. This only stops when new combinations prevent forming. These tumbles also feature growing multipliers, going to 2x, https://www.hackerrank.com/pola-mahjong-black-scatter-wins-maxwin-hari-ini