Multiple bonus feature game play.
The reel symbols in the primary game depict each of the show’s characters, plus other icons from the show: the "Raven" cuckoo clock (it said "Nevermore!" on the hour), and the two famous Munster vehicles designed by George Barris–the family "Munster Koach" car (a hopped-up hearse) and the "Dragula" sportscar.
The primary game also includes a bonus-triggering "Wild Bat" symbol. When that lands anywhere on the screen, it animates and turns into Grandpa Munster. It then appears on all three spots in that particular reel, and the player is paid the ensuing jackpots.
There are two second-screen bonus games. "Munster Match Coins" on an active payline trigger the "Munster Match Bonus." The screen transforms into a grid of 24 squares. Each square hides the image of one of the show’s characters. The player uses the touch-screen feature to pick squares until matching three of the images for a bonus payment. On the nine-line version, the bonus ranges from 30 coins to 325 coins, times the line bet. On the 25-line version, the bonus ranges from 95 coins to 650 coins, times the line bet, for a top possible bonus of 3,250 coins.
There are three spaces hiding each character but Marilyn. There is only one Marilyn square, and if you find it before matching three images of another character, the bonus amount is doubled.
The other second-screen bonus round involves Munster family pet "Spot," the fire-breathing dragon that lived under the stairs. Three or more Spot symbols scattered anywhere in the pay window trigger this event. The screen displays the Munsters’ staircase, which opens up to show Spot, who breathes fire and reveals a bonus multiplier amount. The size of the multiplier depends on how many Spot symbols triggered the event: three symbols trigger a bonus ranging from two to 10 times the total bet; four symbols, 4X to 20X; five symbols, 10X to 40X (a top possible bonus of 6,000 coins on the 25-line version of the game).