Shadow Warriors,” known in North America as “Ninja Gaiden” and in Japan as “Ninja Ryūkenden,” is a side-scrolling beat ’em up arcade game. It features a ninja protagonist, who can be either blue (Player 1) or orange (Player 2), battling enemies across various urban American settings like San Francisco, New York, and Las Vegas. The core gameplay involves players progressing through stages by defeating foes using a variety of martial arts techniques, including punches, kicks, and throws, with the objective of stopping an evil cult led by Bladedamus from fulfilling end-of-the-world prophecies. A distinctive feature is the ability to interact with the environment, such as throwing enemies into destructible objects like trash cans or phone booths, and using an overhead button on the joystick to hang from bars or tightropes for acrobatic attacks. The game also includes cinematic cutscenes between stages to advance the narrative, a notable element for its time.

