Crazy Invaders is a free indie game based on the classic Space Invaders. It is an arcade shooter game where you have to defend the earth against enemy attacks from the sky. The game has seven different levels, each with unique features and challenges.

Apart from aliens, birds are also invaders that can pose a threat by pooping on you while you lay down on the beach. To defend yourself, you will have to use your tongs. As you progress, you will unlock levels that range from an arid desert to a polar world. In one level, cats and mice will meet in a dark alley, while in another, a fish will have to fight with divers in the ocean.

Crazy Invaders is a fun and engaging game that offers a mix of classic and new elements. It's a free shoot 'em up game that will keep you entertained for hours.