Clan's Secret Jutsu

HIDEN

sort of secret jutsu mastered exclusively by certain clans and their members.

Kagemane no Jutsu
invented and taught in Nara clan. a close-range type jutsu which enables the master to use their shadow to control the opponent's body. it takes more intelligence than strength to use this jutsu effectively. and Shikamaru, with IQ of 200, is definitely a perfect user of Kagemane. another jutsu called Kagenui enables the user to attack his enemies with his shadow.

Baika no Jutsu
belonged to the 'chubby' clan, Akimichi. it's a multi size jutsu, the master can enlarge their body parts or whole into a giant size. of course it takes a lot of energy to do this heavy jutsu, that's why the Akimichi clans are all fatasses since they have to store more calories than normal people do. the Akimichis also used 3 colored pills to boost their chakra.

Shintenshin, Shinranshin no Jutsu
the Yamanaka clan's hiden. Shintenshin jutsu forces its master to transfer their soul into opponent's body and take control. however, when it missed, the soul will wander around idle for a moment before it finally returns. meanwhile Shinranshin could control opponent's body without transferring its master soul, thus it's less risky than Shintenshin.

Jyuuken
Hyuuga is known as the strongest clan in Konoha (after Uchiha extinct) besides the Byakugan, Hyuuga also passed down a special fighting skill called Jyuuken (gentle fist). this fighting skill causes internal organ damages worse than normal attack. they also able to stop/increase chakra flows in one's body by striking the tenketsu (chakra holes).

Kikaichuu
the most eerie-looking hiden (esp. for those who hate bugs) it belongs to the Aburame clan who loves wearing black eyeglasses. they raised bugs within their body and feed them with their chakra in return for using them in battle. actually these bugs are used as a scent tracker rather than weapon.