In this game evil aliens invade your school and you need to kill them all shooting them with your gun. The controls are a bit different from those of other similar games. You can select one or several kids dragging the mouse. To make the kids walk somewhere you need to click on the destination point. To make them shoot, you need to aim with your mouse and then press space. Some of the aliens leave keys when they're killed. Collect these keys and use them to open locked doors.