Negative Emotions Sensing

Kurama has the ability to sense negative emotions, such as hate or killing intent of any individual around it. Kurama used this ability to find Naruto's inner hate, which has brought it close to escape numerous times before Naruto removed and took control of its chakra himself.

When Naruto achieved Nine-Tails Chakra Mode, he in turn gained this ability, and was able to sense Kisame Hoshigaki hiding within Samehada, even though Kisame and the sword both shared the same chakra signature. According to Tobi, Mito also possessed this ability.

Trivia

 * Due to this technique, Naruto was the key in finding the transformed White Zetsu Army that was wreaking havoc on the Allied Shinobi Forces during the first night of the Fourth Shinobi World War.