The game has got 10 levels. For advance to next level you have to destroy at least 100 smileys and fill the battle field by destroyed smileys.
You can use 4 weapons - pistol, bazooka, heavy machine gun and bomb.

To encourage the fight, you can play music.

By the destruction of green smiley you get a tray into a heavy machine gun.
By the destruction of violet smiley you get a bomb.