The house of a guy named Tom was attacked by monsters on Halloween night. You in the game Halloween Invaders will have to help the guy repel the attack of monsters and protect his house. Monsters will be visible on the screen in front of you, which will gradually descend towards the guy. It will be at the bottom of the screen. Using the control keys you will control the actions of your character. You will have to move it to the right or left and shoot at the monsters with a special weapon. Your charges will hit the enemy and destroy them. For each monster you kill, you will be given points in the Halloween Invaders game.