I Ninja is a 3D platform title starring an original character created by British developer Argonaut Software. Players control a spirited young ninja as they make their way through a diverse selection of indoor and outdoor locales. The title character is garbed in a blue suit and matching hooded mask, so that only his eyes and his expressive brow are visible to players. The character also wields a pair of katana blades in both hands as he jumps from platform to platform, avoiding hazards and slicing at enemies. The cartoon-style atmosphere is brought to life with the use of cel-shaded graphics, giving the game a distinctive look from many of its platform contemporaries.