player must avoid being caught by Harry and Marv for 20 minutes. During this time, Kevin can set various traps using items scattered around the house, each with a different corresponding strength and allowing the person tripping them to be knocked unconscious longer. Kevin can also hide behind certain parts of the house, but only for two consecutive turns; any other concurrent passings will result in a game over. Some copies of the NES version have two different "game over" screens; one having Kevin McCallister performing his trademark screaming face with a speech balloon on his left side that reads "Oh no!", the other one only having a large cloud with "Oh no!" in the middle of it. Sega platforms The Genesis and Game Gear versions feature a slightly different plot. While the games still revolve around Kevin's battle with the Wet Bandits, he instead must protect several houses in his neighborhood while waiting 20 minutes for the police to arrive (40 on higher difficulties). During the game, the Wet Bandits drive around the neighborhood in their nondescript van until they decide to enter one of the houses. Kevin can travel by sled (in top-down view) to the various houses and do battle with the Bandits as they proceed to rob whatever house they are in (in a 2D platformer/side-scroller format). When this happens, Kevin must fight them off with different weapons and guns in order to fill up an empty Pain Meter; when he does so, he will have saved that particular house and cause the Bandits to retreat. During this time, however, another meter will be filled as the Bandits proceed to rob the house, and if Kevin is unsuccessful in stopping them (thereby allowing meter to be filled), the house will become "flooded" (Marv leaves the water in robbed houses running as a calling card) and he will be unable to reenter the house again. If all the houses end up flooded, the game is over. Kevin starts with a simple BB gun, but he may also finds different items he can combine to make various makeshift weapons that have different effects depending on the ammunition (glue, snow, light bulbs, sound waves, coals, etc.) and gun type (rifle: flies the farthest and fastest; bazooka: flies slower and at a shorter distance; launcher: fires the weapon in a small, short arc; mortar: fires the weapon in a high,