The diamond is the
Scatter symbol. It can be a standard Scatter or the Super Scatter, each being in charge of the Hold and Win and Super Hold and Win bonus games, respectively.
When playing on Level 3 and 4, you need at least six Scatters to trigger the bonus game. On Level 4 the Scatters can be of both kinds.Also, there's another function on Level 4 - landing at least 3 Scatters/Super Scatters awards instantly their collective value.From there on, it is a classic Hold and Win game; you play with three re-spins that are re-triggered each time you land sticky cash symbols. In the end, you win the sum of the cash volumes.