PopRocks Slot: Overview No, slot168 this is not a slot based on the candy that pops in your mouth, PopRocks is the latest title from Hong Kong based studio Avatar UX. A collaboration with Yggdrasil’s Masters Program, PopRocks comes with an intriguing game design based on their new trademarked PopWins feature. It also boasts some pretty big numbers when it comes to both paylines and potential as you will see.