Ninja Five-O

Ninja Five-O, known in the PAL region as Ninja Cop, is a 2003 action-platform video game developed by Hudson Soft and published by Konami. It was released for the Game Boy Advance in North America and Europe in April 2003. Players take the role of Joe Osugi, a ninja who must stop a terrorist group influenced by mystical masks. It was first announced at "Konami Gamers' Day" in early 2003. The game received generally positive reviews from video game critics, but it failed to garner sales and is often regarded as one of the most sought-after handheld games. The original version was re-released on February 25, 2025, for Windows, Nintendo Switch, PlayStation 4 and PlayStation 5.