It presents on a 6x5 reel set filled with garish monsters that create wins when at least eight matching symbols appear anywhere on the reels. When a winning combination lands the symbols which created it explode and are replaced through an avalanche feature familiar to most players. There is a bonus symbol which triggers free spins when four, five or six appear. This symbol acts as a paying scatter symbol, paying out x1, x5 or x10 the bet as an instant payout. An extra five free spins can be won at any time.