Ninja Five-O

Ninja Five-O is one of those titles that proves that even late in the Game Boy Color's life cycle, developers at Natsume could squeeze surprisingly sophisticated action out of aging hardware. The player takes on the role of police agent Joe Osugi, who, disguised as a ninja, sets out to rescue hostages from a terrorist organization holed up in an abandoned building. The game combines fast platforming with a combat system built around a sword, throwing stars, and above all a grappling hook, which the character uses to swing between beams, escape pits, leap gaps between buildings, and reach otherwise inaccessible parts of the levels, turning mere rightward progress into deliberate acrobatics.

The graphical presentation ranks among the best ever released on GBC — the character animations are smooth, the backgrounds detailed, the settings alternate between office floors, warehouses, and rooftops, and the pace of the game rivals action titles from the arcades. The level design places emphasis on rescuing hostages within a time limit, which shifts the game from a simple platforming run toward deliberate risk-and-reward management, as the player must choose between advancing quickly and thoroughly searching each floor. The musical score fills out the tense atmosphere of an action film, and combined with carefully tuned controls, it creates the impression that the game was made several years earlier than it actually arrived on shelves — in 2003, by which point the Game Boy Advance was already on the market and the GBC was fading out.

At release, the game was praised above all by dedicated reviewers, who highlighted its technical polish and inventive design, even though commercially the title largely went unnoticed due to its late arrival on an aging platform, with many players never even encountering it. Today, Ninja Five-O is regarded as one of the hidden gems of the Game Boy Color library, and collectors and action-platformer fans alike consider it essential viewing for anyone who wants to see just what Nintendo's handheld was technically and creatively capable of in its final years.