At the end of the rotation of the rollers various situations can
occur:

There are 3 or more “SCATTER” symbols on the reels in any position:

• You enter “FREE GAME” to play the 1 O extra reel spins without
  consuming credits and a Special Symbol is extracted from all the
  symbols in the table except the “SCATTER”.
• “MYSTERY MAXI SYMBOL” mode is activated randomly. One
  spin with a maxi symbol on reels.
• “MYSTERY WILD” is added to reel to improve the combination.