Protect your communication tower against the enemy air strike. The earlier you take down enemy planes the more money you will get! You can buy or upgrade weapons for earned money and try to keep your tower safe as long as possible.
You are in an alien base and have to pass through all the rooms. Kill all the enemies in order to pass each room. Each enemy has a color which can be only destroyed by a Laser-Bullet of the same color.
The world has gone to hell and the zombies are taking over. Play as both human and zombie in which you can only interchange between human and zombie 5 times.
