Slot Machine published 18 years ago by WMS Gaming, Inc.

Kaboom screenshot

Not listed in MAME yet.

Kaboom © 2003 WMS Gaming.

A new twist has been added to the exciting five-reel video game, Kaboom In place of traditional reel spins, the symbols drop down into the reels from above. The 1st reel drops first, then the 2nd, and so on until all 5 reels have dropped the symbols. Once the symbols have dropped, all winning combinations are highlighted and paid as normal. Then the added feature kicks in! Each symbol that takes part in a winning combination disappears, and the symbols above them drop down to take their place. New symbols drop onto the screen to fill any gaps. If any new winning combinations are formed because of this shift, they are banged-up into the pay meter and awarded to the player. This process continues as long as the drop-down symbols create winning combinations!

Winning combinations of 3 or more Bonus symbols on an active payline blast the player into the Grand Finale Bonus. This bonus awards at least 7 free spins plus the opportunity to win additional spins. During the free spins, skyrocket symbols pay as scatter and explode with full screen firework animation.

Winning combinations of the Skyrocket symbol also add additional free spins.


Available in 20 line, 20/40/100/180/200/400 coin versions.


Kaboom was released in September 2003.


PC [Windows] (sept.22, 2012) "WMS SLOTS - Zeus II"


WMS Trademarks list