Mars Attacks!

Mars Attacks - Buttons

Total Bet

In Mars Attacks slot game, press the Bet button to adjust your desired bet amount.


Make sure your Total Bet amount is selected and once you’re happy, press the Spin button to begin.


By pressing the Auto button in Mars Attacks slot game, you have the ability to spin your reels automatically for a chosen number of rounds. Loss and win limits can also be set.

Mars Attacks - Special Features

Mars Attacks Modifiers

One of five modifiers may be randomly triggered on any spin.

Radiation Blaster

Look out! Wilds will be placed on the reels in random positions.

Mega Shrink Ray

The reels will shrink which will result in five symbols to appear in each reel. Wins will then be paid for any consecutive symbols, from left to right, regardless of the position.

Abduction Beam

Symbols on the reels will be removed by the Mothership, meaning a new set will cascade into position.

Expansion Cannon

A Mystery Symbol will be placed on the reels before spreading to cover closer positions. All Mystery Symbols on screen will be transformed into the same identical symbol, which will be chosen at random.

Sub-Zero Laser

Symbols included in a winning combination will be frozen into position. The reels will then respin until the win cannot be improved any further.

Mars Attacks - Bonus Features

If you manage to land 3 or more Bonus symbols anywhere on your reels, you will be granted entry to one of five bonus rounds. If you land four Bonus symbols in a winning combination, the lowest paying feature, Spy Hunter, will be removed from the selection of bonus rounds on offer. This means that the minimum bonus feature that can be awarded is We Come In Peace.

We all like change which is why you will then be taken to a brand new screen where you will be instructed to choose one of five zones from a world map. These zones include Europe, Asia, Africa, Australia and America (North and South). The zone you select will be invaded by aliens and one of the following bonus features below will be triggered:

Spy Hunter

The power is in your hands! Within this feature, you must pick from the suspects on the board, question is are they humans or martians? A cash multiplier will be awarded for every Martian you expose. By finding three humans, you will be awarded your current winnings and return to the base game. Find the Martian Ambassador and get your hands on a Big Money Boost which will increase your prize and end the feature.

We Come In Peace

In order to fill the banks at the sides of the screen, simply choose from the selection of containers given. If a bank is filled, its value will be added to the bonus winnings panel and one of the following will be awarded:

Multiplier - A multiplier value will appear in the bank and the bonus round will continue. Big Money - When filled again, a Big Money Boost which will be applied to your winnings and ultimately end the feature.

DNA Analysis

With a brand new screen and a 5x4 reel set, DNA Analysis will award you five free spins. Keep a close eye out in the Free Spins feature as Expanding DNA Wilds are active throughout the feature and could increase your winnings. An overlay of the DNA Wilds will scroll down the reels when they are in motion. These Wild symbols will gradually come to a stop, and any symbol position covered by a DNA Wild will be considered a Wild symbol for that particular spin. Please note that DNA Wilds will expand by one symbol after each spin.

Martian Takeover

On a 3x5 reel set, you will be awarded 10 Free Spins and Roaming Wilds will be active. Each spin gives a potential chance to land a Roaming Robot Wild which can appear on any of the reels. The Roaming Robot Wild is known as the special Wild as it fills the entire reel and can substitute for all other symbols. But that’s not all, this special Wild may move one reel to the left each time the reels have spun. If the Roaming Wild lands on the leftmost reel, it will be removed for the next spin. The Martian Takeover feature will come to an end after the last spin, despite how many Roaming Robot Wilds remain on the reels.

Final Stand

When the Final Stand feature is triggered, you will be awarded unlimited Free Spins on a 3x5 reel set. Make sure you watch out for the special Advance Symbol as it can appear on reel 2 for the humans and on reel 4 for the martians. Also, placed at the bottom of the screen are two progression bars - there’s one for humans, and one for martians. Each time the Advance Symbol lands on the corresponding reel, the bars will start to fill up, one segment at a time. Humans will multiply wins, while the Martians remove symbols when milestones are reached on the progression bar. The first team to fill their progression bar wins and once a winner is announced, this feature will come to an end. If the humans manage to defeat their alien opponents, you’ll be awarded a Big Money Boost, which will be applied to any winnings achieved.

Feature Gamble

This works as a Double or Nothing bonus round which can either improve your win or lose it completely. You have the option to gamble any feature wins in Mars Attacks slot game, except the Final Stand. Press “Collect” to claim the feature, or press “Gamble” to try and win a higher paying feature. Once you’ve triggered the initial bonus, you will be presented with the bonus rounds available which are ranked according to the average payout. The feature you are awarded will be displayed on screen. If you gamble and succeed, you can continue to gamble until you choose to “Collect” or you are awarded the top-paying feature. However, if the word “Defeated” appears on your screen, this means you have lost your gamble and will be awarded a Mystery Win Prize as a replacement.

Jackpot King Progressive

Have we got news for you! In Mars Attacks slot game, the Jackpot King Progressive is available in this slot game, meaning a percentage of each stake placed by all players is added the progressive pot. The Jackpot King can be triggered at random at any stake and you will know when you’ve triggered this feature as five crown symbols will land on your reels. After any spin, you can choose an item which will reveal prizes to help you progress through the feature. The main aim of this game is to collect as many golden crowns as you can. If you land 15 or more, it will result in a spin on the Wheel King. The Wheel King awards Big Total Bet Multipliers or maybe even the Jackpot King itself!

Castle’s Verdict

Here at Castle Jackpot, we think that Mars Attacks is a sci-fi themed slot game that is based on Tim Burton’s comic science fiction film, Mars Attacks. With a large number of features available to trigger, it shows us that there is a lot of potential. Also, we think that Mars Attacks slot game is easily accessible as it is available to play on desktop, tablet or mobile, giving players the choice to play at home or on go. If you’re a fan of sci-fi slot games like Mars Attacks, then why not check out Arcade Bomb?

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