Contra : The Alien Wars

Contra: The Alien Wars for Game Boy is a 1994 run-and-gun action game developed by Factor 5 and published by Konami. It brings the alien-invasion campaign associated with the Super NES game Contra III: The Alien Wars to Nintendo's monochrome handheld, with a title tailored to the North American release. The year is 2636, and the Red Falcon organization has launched another assault on Earth. A lone Contra commando heads into the war zone, pushing through hostile territory and enormous alien defenses in an attempt to stop the invasion at its source.

The Game Boy version keeps the series' direct, fast-moving rhythm. The player runs across scrolling battlefields, jumps over hazards and gaps, ducks when danger closes in, and fires continuously at soldiers, creatures, machines, and incoming projectiles. Survival depends on reading enemy patterns, reacting to the limited view of the handheld screen, and preserving lives through demanding stage sections. The campaign moves from ruined urban surroundings into more dangerous alien-held environments, ending stages with outsized bosses that require careful positioning as well as sustained fire.

Weapons remain central to the action. Power-up carriers can supply stronger shot types, changing the way a player handles crowds and tougher targets, while bombs provide an emergency attack against everything on screen. This is not a one-for-one recreation of the Super NES design: Factor 5 adapted the game for Game Boy hardware, omitted some of the original stages, and reduced the weapon system to a single equipped gun rather than the console version's freely swappable pair. The spinning attack from the Super NES release is also absent, so the portable game places even more emphasis on movement, firing direction, and timely use of bombs.

Its levels vary the perspective within the constraints of the Game Boy. Most of the adventure is side-scrolling Contra action, but the adaptation also includes overhead combat sequences that ask the player to navigate hostile ground and eliminate objectives. The resulting route is shorter and structurally different from Contra III, yet it preserves recognizable encounters, settings, and the escalating Red Falcon conflict. A password system lets players return to later progress, a useful feature for a compact game built around repeated attempts and memorizing difficult enemy placements.

Contra: The Alien Wars was released in Japan on September 23, 1994, followed by North American and European releases later that year. The Japanese edition is known as Contra Spirits, while the European release became Probotector 2. As with other European Contra localizations of the period, Probotector 2 replaces the human commandos with robotic characters, but it is the same Game Boy adaptation rather than a separate sequel. These names are important when identifying cartridges, manuals, and regional releases of the game.

The cartridge is also compatible with the Super Game Boy accessory. Played through that Super NES peripheral, it gains color presentation and enhanced audio, offering an alternate way to experience the handheld conversion. Even without the accessory, the game stands as a distinct portable entry in the Contra series: not the full Super NES original, and not the later Game Boy Advance remake, but Factor 5's own 1994 reworking of Contra III for the original Game Boy. Its focused single-player campaign captures the series' mix of relentless forward motion, weapon pickups, huge enemies, and alien-war atmosphere in a form made for Nintendo's handheld.