Double Snake Assassination: This technique is a murder-suicide technique. Both the opponent and the user must die. This is also why it is treated as a forbidden jutsu.
Five Element Seal: This jutsu is performed by Orochimaru on Naruto while in the forest of death. Using an odd-numbered seal on top of the even-numbered Kyuubi seal, the original Kyuubi seal is strengthened. As a result, Naruto becomes unable to control his chakra, and is unable to tap into his demon fox chakra.
Hidden Snake Hands: A summoning jutsu that brings snakes into the sleeve of the user, which can move out and attack/grapple anything they want to.
Immortality Skill: A jutsu that grants the user the ability to project his soul into the world, anchoring the spirit. The user can then find a new body, take control of it, and once again become young. It is a reincarnation ability.
Summoning Reanimation: A very high level and forbidden summoning skill. The user summons the bodies of the person/people he prefers in wooden boxes with their name on it. After the bodies are summoned the summoner must insert kunais knifes into the summoned bodies. These knives nullify the summoned person's soul and give control of the soul to the summoner.
For this summoning human sacrifices must be made so that the soul of those whom were sacrificed can tie the summoned to this world. One person must be killed for one summoned person. Two for two and so on.
Summoning, Rashoumon: A summoning technique used soley for defence. This ultimate defence technique protects the user from a powerfull head-on attack. It looks like a giant temple with a huge gate and demonface embedded in it. It is capable of stopping even the strongest attacks known in ninjutsu. Unlike the regular Kuchiyose No Jutsu there's no animal being summoned.
Body freeze skill: Used to immobilize enemies. It submits an extremely large amount of fear into the target, Usually the fear of dying in battle. They picture their own death. The fear stops them and freezes them in their tracks.
Cursed Seal Skill (Orochimaru): A jutsu unique to Orochimaru. Small marks are formed on the neck, caused by a bite from Orochimaru. The victim is put through intense physical and mental torture, in which they usually fall unconscious. If the victim is strong enough to survive the 9/10 chance of death, they are infused with the 'power' of the cursed seal. Its power, is in fact a forbidden jutsu, that becomes active during chakra usage. The mark on the neck grows and spreads across the victim’s body, forcing chakra to come out and at the same, making the person stronger. They lose control of their body, becoming controlled by Orochimaru, or driven into madness.
Info From:
http://naruto-kun.com/bloodline-limit-jutsu/