Aliens invade the Earth and you are the only one who can save our planet and the humankind! Defeat the aliens by tapping; let the people reach their homes perfectly safe. Losses of people will lead to reduction in the amount of time and coins. You are able to face different types of aliens, which will appear as you play. You are free to adjust the running speed of aliens for the more interest.
Three types of bonuses will help you throughout the game, which can be bought for the earned coins.
• Kill. Kills every alien on the screen.
• Freeze. Freezes the timer for a while.
• Humanize. Removes aliens arrive for some time.
The target of each level is to safe 100 people in determined period.