I-Ninja is an action-adventure video game developed by Argonaut Games and released in 2003. The game follows the titular ninja character as he embarks on a quest to defeat a villainous master and avenge his sensei. Players engage in a mix of combat, platforming, and puzzle-solving across various levels. Its gameplay is known for its mix of humor, unique level designs, and challenging gameplay elements. The title is regarded as a hidden gem within the action genre of the early 2000s.