Cosmic Guerilla
German flyer
Developer(s)	Universal (Arcade) Crystal Computing (Spectrum)
Platform(s)	Arcade, ZX Spectrum
Release	1979: Arcade 1983: Spectrum
Genre(s)	Fixed shooter
Mode(s)	Single-player, multiplayer

Cosmic Guerilla is a fixed shooter arcade video game developed by Universal and released 1979. A ZX Spectrum port was published by Crystal Computing in 1983.

Cosmic Guerilla is a two-dimensional fixed shooter game. The player takes control of a laser cannon at the bottom of the screen whose movement is limited to left and right, and must fire at the aliens above. ^[1] In contrast to Space Invaders the aliens are arranged in a single vertical line on each side of the screen, ^[2] with their movement being towards the centre, one or more at a time, in an attempt to capture and remove the player's shields. ^[3] The aliens cannot be hit by the player's shots until they begin to move, and the player may only fire one projectile at a time. ^[4] Once a row of shields has been removed, one of the player's " lives", is exposed and able to be captured. ^[3] Occasionally a very fast "mothership" will appear and traverse the screen just above the player dropping bombs. ^[4]

There are six levels of difficulty ^[4] along with four game modes ^[3] allowing combinations of the regular game, bonus enemies, and faster aliens. There is also a two player mode where players take alternative turns. ^[3]

Cosmic Guerilla was invariably compared to Space Invaders, though Sinclair User described it as the "next step up", with its different scenarios and object arrangement. ^[2] Home Computing Weekly, Sinclair User and ZX Computing all praised the game's smooth graphics, ^{[1] [2]} though HCU felt that better use could have been made of the sound. ^[3] The game was generally well received, and described variously as "incredibly addictive" and "very playable", ^[2] and "highly recommended". ^{[1] [4]}

• Cosmic Guerilla at the Killer List of Videogames
• Cosmic Guerilla at SpectrumComputing.co.uk