Contra

Contra is a run-and-gun action game developed and published by Konami, first released as an arcade game in 1987 and ported to the Nintendo Entertainment System the following year, reaching North America in February 1988. Players control one or two commandos, Bill and Lance, battling across side-scrolling and into-the-screen stages against an alien-backed guerrilla army, in a story that wears its 1980s action-movie influences openly. The core loop is simple and unforgiving: the heroes die in a single hit, so survival depends on dodging relentless enemy and projectile patterns while collecting weapon upgrades such as the spread gun, laser, and machine gun. Levels alternate between traditional horizontal platforming and pseudo-3D base-assault sequences shown from behind the characters. Contra is best known for two things. The first is its two-player simultaneous co-op, which turns a brutally hard game into a shared ordeal that players remember for decades. The second is the Konami Code, the sequence of button presses that grants thirty lives and which became one of the most famous cheat codes in gaming, far outliving the game itself. The NES version was a major hit and is widely regarded as one of the finest action games on the console, spawning a long-running series including the acclaimed sequels Super C and Contra III: The Alien Wars. Its combination of tight controls, memorable weapons, and cooperative difficulty has kept it a touchstone of the run-and-gun genre.