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|Location found:||A jungle|
|Introduced in:||Judging Omi|
|On the Wiki:|
The Ying Yo-Yo was a Shen Gong Wu that allowed its user to transport themselves to the Ying-Yang World, with the same power as the Yang Yo-Yo.
The Ying Yo-Yo has the ability to transport the user to the Ying Yang World. However, if the user left the Ying Yang World without both the Ying Yo-Yo and Yang Yo-Yo or without their chi, then they would emerge in the real world with an opposite affiliation and personality.
When Omi first used the Ying Yo-Yo, he later returned to the world with his evil side in control while his good side lay trapped in a bottle in the Ying Yang World.