N-Sub

From Wikipedia, the free encyclopedia

N-Sub
European SG1000 box art of N-Sub.
Developer(s)	SEGA
Publisher(s)	SEGA
Platform(s)	Arcade game, Sega SG-1000, Sega SC-3000
Release date	Arcade ^JPN 1980 ^NA 1980 Sega SG-1000/Sega SC-3000 ^JPN 1983 ^EU 1983
Genre(s)	Fixed Shooter
Mode(s)	Up to 2 players, alternating turns
Input methods	8-way Joystick, 2 button
Cabinet	Standard
CPU	Z80 @ 1.93356 MHz
Sound	Preliminary, mono
Display	Raster (Vertical) standard resolution (Used: 224×256)

N-Sub (N-サブ, N-Sub^?) is a 1980 arcade game developed and published by SEGA. N-Sub was later ported to the SG-1000 and the SC-3000 by SEGA only in Japan and Europe in 1983. It is one of the earliest naval video game titles. A similar arcade game, Heli Fire, developed by Nintendo, was released the same year, but the answer to which arcade game was released first is unknown.

[edit] Gameplay

Screenshot of N-Sub (monochrome arcade version).

The object of the game is to maneuver the "N-Sub" with the control lever and sink the enemy fleet with torpedo fire. Torpedoes can be fired vertically or horizontally by means of two separate FIRE buttons and 3 torpedoes can be fired in rapid succession by keeping the button depressed. The enemy ships attack the N-Sub with missiles, torpedoes and depthbombs. One round is over after the attack by the enemy fleet of 12 ships (No. 1 Fleet Black, No. 2 Fleet Blue) and the loop attack by the enemy destroyer. Enemy attack gains in ferocity with each new round. Bonus points are awarded if the fleet of 12 ships and the destroyer are destroyed. 1 extra N-Sub is added if players attain high score. The game is over when all players' N-Subs are sunk.