Money Pump is a 12-reel video slot machine. You play on all 4 play areas: top-left, bottom-left, top-right and bottom-right. Every play space has 5 mounted paylines, for a complete of 20 mounted paylines.
WILD symbols solely seem on the middle reel of every play space, substituting all symbols besides SCATTER.
The STACKED WILDS characteristic is triggered when any middle reel is totally occupied by WILD symbols. All WILD symbols are then duplicated within the corresponding positions on all different play areas, multiplying any win by both x1, x2, x3 or x4.
SCATTER symbols solely seem on the middle reel of every play space. 1 SCATTER image showing on each play space (4 in whole) will set off 7 FREE SPINS.
Throughout FREE SPINS, any SCATTER image showing on any play space is collected. Every time 4 SCATTER symbols have been collected, an extra 5 FREE SPINS are awarded and the accessible multipliers for STACKED WILDS are elevated. The primary multiplier at all times will increase by 1 (from x1 to x2, and so on.); the second multiplier at all times will increase by 2 (from x2 to x4, and so on.); the third multiplier at all times will increase by 3 (from x3 to x6, and so on.); and the fourth multiplier at all times will increase by 4 (from x4 to x8, and so on.). The multipliers are limitless, as much as the purpose the place the characteristic ends.