The game is very simple, at the beginning of the game, you’ll start off with 2 guppies or one breeder later on, which essentially just breeds guppies. You need to feed your guppies in order for them to grow, they can grow twice, once they grow once they’ll give you silver coins, than the second time will give you gold coins which of course gives you even more money. In order to get even more money, you buy better but more expensive fish, that eat your cheaper fish but drop more money than them. The in-game money can be used to purchase fish food and upgrades, such as more fish, better fish food, and more powerful lasers to fight alien attackers. You win the game by getting enough money to hatch an egg, in order to fully hatch the egg, you have to purchase it 3 times. Hatching the egg at the end of the level will give you a new pet to fight along your side every time. You can choose up to 3 pets at a time, and once you get all of the pets in the game, you can choose up to 4. There’s 4 different game modes: Adventure mode: This is the main mode of the game, the goal of this mode is to purchase three egg pieces in every level to unlock a new pet. There are a total of 5 stages in every tank with a total of 4 different tanks, with each tank having their own unique food chain. Time Trial mode: The goal of this mode is to earn as much money before the time runs out. In Tank 1, you have 5 minutes. In Tank 2-4, you have 10 minutes. From the money you earned, 5% will be taken and converted to shells and added to your balance Challenge Mode: The longer you take in this mode, the harder it gets, the prices of everything goes up and the aliens get much harder to beat. Each time you win, you’ll unlock a story about one of the pets or aliens, with a total of 33 stories. Virtual Tank: Mainly used to just chill and relax your hand after so much clicking, but there’s plenty of interesting secrets and things to buy in the item shop in this mode.