The Monster Wild symbol is wild and substitutes for any other symbol except the Scatter Brain symbol to complete winning combinations. It can substitute for all other symbols except the Scatter Brain symbol to complete winning combinations. The Monster Wild symbol only appears in reels 2, 3 and 4. Only one winning combination is paid out per payline. If there is more than one possible winning combination on a payline, you are paid out the value of the highest combination only. .