Rikimaru and Ayame of Tenchu

Spanning three games, with a fourth on the way, the Tenchu series is as close to a ninja boy's ultimate dream as you can get. Tenchu pays homage to the three things that truly makes a ninja great: their arsenal of deadly equipment, including poisons, toys and explosives; their ability to use stealth to become invisible and the knowledge of "1,000 ways to kill a man." Rikimaru and Ayame are two 16th-century ninjas under the employ of Lord Gohda. While Rikimaru and Ayame could hold their own in a straight-up fight, better scores and better equipment are awarded to players that follow the ninjitsu code of secrecy and stealth. Stealth was crucial to make it through higher-level areas that didn't contain mere human ninjas and samurai, but tengu (goblins) and oni (demons). Rikimaru and Ayame could use grappling hooks to ascend to elevated terrain, hug walls, creep about and jump from rooftop to rooftop like the memorable theft scene from Crouching Tiger, Hidden Dragon.