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''Nautilus'' is a 1982 computer game for the Atari 8-bit series created by Mike Potter and distributed by Synapse Software. The players control a submarine, the ''Nautilus'', or a destroyer, the ''Colossus'', attempting to either destroy or rebuild an underwater city. The game is historically notable as the first to feature a "split screen" display to allow both players to move at the same time.〔("Mike Potter's Story" ), The Giant List of Classic Game Programmers, 17 January 2000〕 ==Gameplay== ''Nautilus'' started with player one in control of the submarine, visible in the lower pane of the split-screen display. The joystick allows the user to move left and right or rise and sink - the submarine was always pointed to the left or right. The player can shoot their Thunderbolt torpedoes to the right or left in the direction of travel. The primary task for the player is to move into location beside the various underwater buildings and destroy them with their torpedoes in order to expose their energy core, which can be picked up by moving over it. The player wins the level by collecting all of the cores. Player two, or the computer player in a single-player game, controls the destroyer, visible in the upper pane. The ship's primary task is to ferry repair crews from the right side of the map back to the left, dropping them into an elevator that takes them to the bottom of the ocean. From there they quickly move back towards the right through a tube on the ocean floor, instantly repairing the buildings directly above them as they pass. The destroyer also drops depth charges and Barracuda missiles that attack the submarine. The missiles track the submarine and can be killed by hitting them with five torpedoes. Frogmen with limpet mines randomly appear on the sea bed and track the submarine if it passes over them. These are relatively easy to dodge in most cases, and can be killed by shooting them five times. The most dangerous enemy is normally the construction crew, who may fix one of the buildings while the ''Nautilus'' is inside, retrieving the core. Both the ''Nautilus'' and ''Colossus'' have a sonar system that indicates the direction to the other ship. When the two are aligned vertically the display turns red and a warning horn sounds. In two-player mode the actions of the destroyer are relatively limited. The delay between dropping charges and them reaching the submarine is enough to allow the sub to destroy an average building before they arrive, so the ship cannot easily directly attack the sub in order to prevent it from winning. This forces it to act as a ferry for the repair crews. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nautilus (video game)」の詳細全文を読む スポンサード リンク
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