Tenchu: Dark Secret

Tenchu: Dark Secret (Tenchu: Dark Shadow in Japan) is an action-adventure stealth video game developed by Polygon Magic and published by From Software in Japan and Nintendo worldwide for the Nintendo DS in 2006. It is also the first game in the Tenchu series to be released for the Nintendo system and not to have a Mature rating from the ESRB.

The game allows players to choose between Rikimaru and Ayame, two ninja assassins sent out to save a princess. There are more than 40 missions, as well as local wireless multiplayer combat and Wi-Fi capabilities which can be used to trade, buy and sell items around the world.