It is a game of cat and mouse in Kalamba Games’ first Megaways slot title as the furry rodents attempt to outsmart their feline nemesis in Rumble Ratz Megaways


Out now




Rumble Ratz Megaways is a 6×4-6, 46,656-payways video slot that includes a Megaways feature, K-Cash symbols and a Buy Bonus. 




96.7 per cent


For the sake of the symbol values in this summary, we have used Kalamba’s preset bet of €2, so following figures will be in euros. 

The lower value symbols within the slot consist of the traditional A-9 royal symbols that provide between €0.16 and €5.20, depending on the number of matching symbols that land in a single spin. 

Moving up higher in value, the rats that hold a rolling pin and spatula provide €0.64 for a winning combination of three and €6 for a six-of-a-kind win. 

The ladle mouse and honey dipper mouse are the next value jumps, which sees a €8 win for a winning combination of six. 

Finally, white king mouse with a golden spoon represents the highest paying regular symbol, offering €0.80 for two matching symbols and €10 for six landing in a single spin. 

Alongside the regular paying symbols, the title also comes with a wild, which substitutes for all other symbols except the bonus and K-Cash. 


Kalamba’s latest title incorporates the Megaways mechanic, which results in the column height being dynamic, resulting in various ways pays. The column height expansion or set takes effect during the base game and free spins. 

In addition, K-Cash symbols may appear, with each having a value associated with it. These values are collected on the K-Cash metre for its respective columns that they appear on. 

If the column height is less than six and the K-Cash symbol appears as a reset symbol, then the game determines randomly whether the K-Cash symbol will expand the column on which it appeared by one row. 

Alternatively, if it is higher than six, then the player is awarded the cash value displayed on the metre.

Three or more bonus symbols award the Rumble Ratz free spins round which initially grants three respins to players. This can be retriggered each time a reel is increased to six rows high through the K-Cash feature. 

The collected sum of the K-Cash symbols gathered is multiplied by climbing the progressive multiplier ladder with each step unlocked for expanding a full reel.

Additionally, players can use the HyperBonus feature to instantly unlock the bonus round with three different choices on offer. K-Cash multiplier options include maximums of x4, x7 or x10.


Alex Cohen, COO and Co-Founder of Kalamba Games, noted: “With a host of engaging features, changeable reel sizes thanks to our innovative use of the Megaways mechanic and a huge max win of over x5,000, Rumble Ratz Megaways is sure to be a big hit with slot enthusiasts around the globe.

“The entire team worked hard to deliver a new twist on Megaways with Rumble Ratz still being instantly recognisable as having Kalamba’s stamp of quality attached to it.”



To play a demo version of Rumble Ratz Megaways, click here