Contra: Locked 'N' Loaded is a single-player and multiplayer run-and-gun shooter game in which players control characters to navigate through levels filled with enemies, using firearms and quick reflexes to survive and progress. In this game, the storyline revolves around a classic action setting where players face off against enemies in a series of combat missions, reminiscent of the original Contra game, with a focus on fast-paced shooting action. It stands out with its use of the OpenBOR engine, offering enhanced gameplay features such as multiple playable characters, three main missions, and two unlockable stages, providing a nostalgic yet expanded experience for fans of the genre.