Slugterra: Slug it Out 2 is the second release of this well-known adventure puzzle game where you have the task of defeating your enemies by using all kinds of slugs. The problem is that these slugs are disappearing across multiple caverns, and you have the purpose of finding out why this happens. You can control the protagonist, Eli Shane, leading him through many adventures inside 99 caverns in order to bring the slugs home and restore the balance in your world.
You can improve the abilities of your slugs by finding and using Evolution Stones. During your exploration of the caverns you will face many enemies, including giant bosses that must be defeated if you want to move further. Another way for earning coins, gems, Evolution Stones and even slugs, is by opening treasure chests. An important aspect that you must know, is that you'll have to match up the elements found on the screen, because they're required each time you plan to use one of your slugs.