Ninja Five-O

Ninja Five-O
European cover art
Developer(s)Hudson Soft
Publisher(s)Konami
Director(s)Gen Suzuki
Producer(s)Hitoshi Kimoto
Designer(s)Gen Suzuki
Programmer(s)
  • Hajime Hosokawa
  • Katsuhiko Hosogai
  • Yasukazu Majima
Artist(s)Osamu Ōe
Composer(s)
  • Aya Tanaka
  • Hiroyuki Tsuboguchi
Platform(s)Game Boy Advance
Release
  • EU: April 11, 2003
  • NA: April 17, 2003
Genre(s)Action, platform
Mode(s)Single-player

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.