Rumble Ratz Megaways

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Rules and Gameplay

The Rumble Ratz Megaways slot by Kalamba Games introduces an innovative twist to the Megaways mechanic with its themed gameplay centered around a cat-and-mouse chase. Players dive into a dynamic game field that stretches across six reels, with rows ranging from four to six, and up to 46,656 ways to win. The game starts with a minimum of 4,096 win ways, expanding as K-Cash symbols land to unblock reel positions. The gameplay is set in a medieval kitchen, where players aim to assist the rat characters in evading the vigilant cat while collecting cheese and triggering bonuses.

Bonus Features

Rumble Ratz Megaways is packed with engaging bonus features designed to enhance your gaming experience:

  • Free Spins: Triggered by landing three or more scatter symbols, starting with three free spins. The free spins tally resets with every K-Cash symbol, potentially extending the bonus round.
  • K-Cash Symbols: Central to the game’s mechanics, these symbols expand the reels and add cash prizes to accumulators above each reel. A full accumulator awards the prize and resets the reel.
  • HyperBonus Feature: Available to players outside the UK, this feature allows the purchase of free spins at varying costs, with predetermined K-Cash multipliers up to x10, providing a shortcut to bigger wins.


The game’s symbols are a charming mix of medieval culinary and rodent-themed icons:

  • Low-Value Symbols: Card royals from 9 to A, offering lower payouts.
  • High-Value Symbols: A gang of five different rat characters, each equipped with cooking gear, paying higher stakes.
  • Special Symbols:
    • Wilds – Cheese symbols substituting for all others except scatters and K-Cash.
    • Scatters – Trigger the free spins round.
    • K-Cash and K-Cash Reset Symbols – Key to unlocking reel positions and awarding cash prizes.


With the Megaways engine, Rumble Ratz Megaways offers up to 46,656 ways to win. This dynamic system changes the number of paylines with each spin, depending on the number of symbols that land on the reels, providing an ever-changing and thrilling gaming experience.

Pros & Cons

Pros Cons
Innovative K-Cash symbols for dynamic reel expansion Maximum win potential is lower than some other Megaways slots
High RTP of 96.21% enhances winning chances High volatility might not suit all players
Engaging theme with high-quality graphics and animations Limited bonus buy options depending on jurisdiction

Minimum and Maximum Bet

The betting range in Rumble Ratz Megaways is designed to accommodate both low-budget players and high rollers. Bets start as low as $0.25, making it accessible for those on a tight budget. On the higher end, bets can go up to $37.50 per spin, offering the potential for substantial wins to those willing to risk more.

Game Jackpot

While Rumble Ratz Megaways does not feature a progressive jackpot, it offers players the chance to win up to 5,000 times their stake. Alongside this impressive win potential, the game boasts a Return to Player (RTP) rate of 96.21% and falls into the category of high volatility slots. This combination means players can expect sizable but less frequent wins, indicative of the game’s risk-reward profile.

About Provider

Kalamba Games, the developer behind Rumble Ratz Megaways, has established itself as an innovative provider in the online casino industry. Since its inception in 2016, Kalamba has been committed to creating high-quality slots that blend traditional gameplay with modern features and mechanics. Their portfolio, known for its engaging themes, detailed graphics, and inventive bonus features, has garnered a loyal following among slot enthusiasts. Rumble Ratz Megaways is a testament to Kalamba’s dedication to pushing the boundaries of slot design.

How To Play

  1. Load the game at your chosen online casino.
  2. Adjust your bet size using the +/- buttons. Bets can range from $0.25 to $37.50 per spin.
  3. Read through the game’s rules and paytable to understand the winning combinations and features like K-Cash symbols and free spins.
  4. Press the Spin button to start the game.
  5. Watch for K-Cash symbols and scatters, which can trigger free spins and reel expansions for increased win ways.
  6. Utilize the Autoplay feature for a predetermined number of automatic spins if desired.
  7. Engage with the HyperBonus feature if available in your jurisdiction, to buy into the bonus round directly.


Rumble Ratz Megaways by Kalamba Games stands out in the crowded field of Megaways slots with its unique theme, dynamic gameplay mechanics, and high RTP. The innovative use of K-Cash symbols for reel expansion and the engaging cat-and-mouse chase narrative provide a fresh and entertaining gaming experience. Despite the high volatility and the somewhat modest maximum win potential compared to some other slots, it offers substantial rewards for those who venture into this medieval kitchen. Overall, Rumble Ratz Megaways is a compelling addition to Kalamba Games’ portfolio, showcasing their ability to innovate within the well-trodden paths of slot design.