After choosing the coin size and line bet, players can add a payline by clicking either the 'Select Lines' button or the buttons next to the reels. Clicking 'Spin' will spin the selected reels, while choosing 'Bet Max' will spin the reels after activating all the paylines. Players can then use the paytable to find out how much their reward will be for catching aliens. With this five-reel, 25-payline slot, they have the chance to win up to 10,000x their line bet.
Encountering any of the three alien scatter symbols may generate large prizes for players. Finding three or more spaceships could trigger up to 25 free spins, depending on which reels they appear on. The Alien Egg symbol leads players into a mysterious cave where they can eliminate eggs, uncovering cash prizes and multipliers in the process. However, players should be aware of any aliens lurking in the shadows, because once caught they will be forced to leave the cave.
The Alien Hunter symbol triggers another bonus round where players have to battle with the aliens head on against the clock. They can catch a maximum of six aliens in a cage, and win cash for their efforts. The Caged Alien symbol is the wildcard that substitutes all other symbols on the payline, with the exception of special feature symbols. Enabling the Dollar Ball transports the player to a lottery-style side game, where players can select five numbers between one and 49 to try and get the ultimate jackpot.
