In this game, you'll be helping little green men get rid of the advancing invaders by using a secret gun. Intelligent globular clusters are attacking the planet. The attacking chain is moving very fast and you need to have time to shoot it. Hitting a group of similar balls leads to an explosion. The critical amount of the enemy is three or more identical balls. The goal is to keep the snake out of your planet. With the next victory, the length of the chain increases, which gives you the opportunity to shoot more accurately.