Xtra Rewards Slots

Slot Machine Description Optional Xtra Reward® feature is awarded when additional ante bet is placed, Available in 20 and 30-line (fixed or standard) configurations, Medium-Low Volatility, Win up to 12 Free Games, Xtra Reward® Rule: Spin Feature is randomly triggered and awards 1 wheel spin.

  1. Optional Xtra Reward® feature is awarded when additional ante bet it placed, Available in 20 and 30-line (fixed or standard) configurations, High Volatility, Win up to 15 Free Games on each active payline and weigh your chances with the Balance of Fortune™ Feature, Xtra Reward® Rule: 3rd Reel becomes 2 symbols in 1 reel.
  2. Xtra rewards slots free games Three are worth eight free games, while four award ten. Fifteen free spins are on offer for any player that lands a scatter on all five reels and that is when the Balance of Fortune comes into play.SLOT FEATURES. It can substitute for all symbols in the game.
  3. The list is based mostly on your country, as Xtra Reward Slot Machines many bonuses are only valid to players from certain countries. However, other ranging factors, such as the bonus value and the casino's rating, have been added into the mix as well.
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Free to Play Konami Slots Online

At one point in the planet’s history, huge mastodons roamed the length and breath of North and Central America. From the frigid tundra of Alaska to the steaming jungles of Honduras, these massive creatures moved herds before finally going extinct 11,000 years ago.

The creative design team at Konami Gaming looked at the fossil record and created the most enjoyable ice age slot game available to date.

From the vaunted Mammoth to Saber Toothed Tigers to Rhinos and playing cards, the Mammoth slot machine lights up with bonus features triggered by lightning strikes and campfires.

Symbols and Wagering in Mammoth Power Slots


Konami’s five-reel Xtra Reward format offers players of all budgets can enjoy a wager with available 10, 20, and 30 paylines.

Additionally, with bets ranging between a penny and $0.50, players can ramp up their level of excitement and commitment based on the level of their wager.

With a RTP of 96.07%, the game also comes loaded with extra rewards, action-stacked symbols, and a free game bonus.

The luckiest Mammoth collector might win the game’s maximum payout of $424,800. That is nothing to sneeze at even if you were to be allergic to Mammoths.

Higher value symbols to look out for in the game include:

  • Mammoth
  • Saber tooth tiger
  • Prehistoric Wolverine
  • Rhino
  • Herd Animal

In the basic game, the Mammoth is the highest rated symbol with a five-of-a-kind winning 250 coins, while four and three-of-a-kinds earn 75 and 25 coins per each credit wagered.

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The saber tooth tiger and prehistoric wolverine symbols garner 150, 50, and 20 coins respectively for landing a five, four, or three-of-a-kind.

The lower paying icons round out the basic game and are represented by the standard ace through nine playing cards that are typical favorites of the slot machine genre.

The highest two (Ace and King) win 50, 25, and 10 coins for five, four, and three-of-a-kind combinations.

The Queens and Jacks win 35, 15, and 8 coins whilst the tens and nines bring in the smallest win with 30, 15, and 5 coins.

While these may seem like pedestrian win, you will be surprised by how quickly they add up to real payouts. That being said, as with most slot games, the real excitement and money is earned during the free game portion of the game.

Specialty Symbols for Free Games

Two specialty symbols are designed to boost your winnings. Entrée into the bonus rounds are achieved by landing at least three Scatter symbols (the Spear head icon).

Indeed, landing three, four or five scatter symbols triggers 8, 20, or 30 free spins. While in the free game mode, landing 2, 3, 4, or 5 scatter symbols award an additional 2, 8, 20, and 30 additional free spins.


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The other specialty symbol is the Cave Symbol that serves as a stacked Wild icon that acts as a substitute for all other symbols on the reels.

Don’t waste your time looking on the first and last reels because they only materialize on reels 2, 3, and 4, but when they form a winning combination they expand and change to the prehistoric paintings inside the cave.

As such, you will benefit from the Konami’s action stacked symbols guarantee that payout of multi-payline wins throughout the course of play.

When appearing during the free spin portion of the game, wild cave symbols promise 2 X or 3 X multipliers, which when combined with additional free spin opportunities can really add up to some impressive winning tallies.

Conclusions Regarding Konami’s Mammoth Power

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Playing Konami’s Mammoth Power slot game is well worth the time and effort to understand how to maneuver in a prehistoric environment and win a potential $424,800.

Frequent Wild cave icons during the basic game deliver impressive winning amounts, but they really take hold during the free game portion of Mammoth Power.

Available in a mobile platform, those timid about creeping too close to the massive Mammoths can easily sit on the couch and access the game remotely.

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Slot players looking for an exciting game rated as a medium to high volatility, and crawling with the biggest animals of the Pleistocene period, will find both enjoyment and possible winnings that could be bigger than an actual Mammoth.

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