Ninjas & Superspies is a modern-day espionage role-playing game published in 1988 by Palladium Books that delves into martial arts as a form of combat.

Mystic China, the game's only published supplement, adds character classes, martial arts, and campaign material focused on Chinese traditional culture (Feng shui geomancers, Taoist priests, etc.).

provides a base age which is modified by whatever combat training a character has and, in some cases, how long they have spent in prison.

[1] In 1995, Palladium published Mystic China, a 208-page softcover supplement also written by Erick Wujcik, with additional material by Kevin Siembieda, interior art by Vince Martin, Wayne Breaux Jr., Kevin Long, and Roger Petersen, and cover art by James Steranko.

[2] This supplement describes several new character classes such as the Demon Hunter, and provides details of subjects as diverse as Chinese checkers, economics and traditional ninja weaponry.