Modern slot games often use Megaways mechanics, offering up to 117,649 ways to...

https://wiki-planet.win/index.php/Why_Do_Some_Slots_Have_Expanding_Reels_or_Extra_Rows%3F

Modern slot games often use Megaways mechanics, offering up to 117,649 ways to win. This design approach changes reels and symbols each spin, creating fresh gameplay every round