Hidden Dragon

The Hidden Dragon (ヒドゥンドラゴン) is a keychain for Sora's Keyblade which appears in Kingdom Hearts Re:Chain of Memories and Kingdom Hearts II.

In Kingdom Hearts II, Sora receives the Hidden Dragon once he opens The Land of Dragons's Gate.

Design
The Hidden Dragon Keyblade is designed with an oriental dragon theme. The guard is similar to the color and shape of Mushu. Its blade is a burst of fire coming out of a dragon's mouth, while the keychain's token is the medal Mulan receives for saving the Emperor.

Etymology
The name for this Keyblade is most likely based on the title of the film Crouching Tiger, Hidden Dragon, which is also set in ancient China.