9 Coins is the Wazdan slot that introduced Cash Infinity. Symbols carrying that feature stay on the base-game reels until Hold the Jackpot begins, creating a persistent collection across spins. The provider later reused Cash Infinity in 9 Coins 1000 Edition and Grand Gold Edition, which are separate releases. The original game's identity therefore matters: a jackpot amount or extra feature documented for a later edition should not automatically be attributed to this one. Sticky symbols change the bonus setup but do not make its outcome certain.
To compare related slots formats, read the rules of 15 Coins™ Grand Diamond Edition and All Lucky Clovers.
The library also explains the difference between lines, ways and clusters to help put these mechanics in context.
Source: published game information.
