The game symbols - diamonds have the BARS of different colours on them, these symbols complete the winning combinations. Any diamonds above or below the payline can move if its point is facing the payline.
Try Diamond Mine if you like simple games, it doesn't have any multiplier or wild symbols. This gamble has another more complicated version with 5 reels and nine paylines - Super Diamond Mine.
The wild symbol: The 2x symbol is the wild one and replaces any symbol to complete the winning combination. The multiplier: The 2x symbol multiplies your payouts in two times, in a case you hit two 2x symbols, the sum of the prize is quadrupled, with the exception of three diamonds appearing on the reels.