Contra

In 2633, two soldiers named Bill and Lance are on a mission to destroy an alien organization known as Red Falcon that seeks to take over the Earth. They must fight their way through various locations, including a jungle, a base, and a high-tech fortress, battling enemy soldiers and powerful bosses.

Contra is a side-scrolling shooter game where players control Bill and Lance, shooting their way through waves of enemies while avoiding obstacles and enemy fire. The game offers power-ups that enhance the players' weapons and abilities, and allows for two-player cooperative play. Known for its challenging difficulty and memorable boss battles, Contra had a notable impact on the video game industry by popularizing the run-and-gun genre and helping establish Konami's dominance as a game developer.