Chakra

Essential to even the most basic jutsu, chakra is mixture of the energy present in every cell of the body and the spiritual energy gained from exercise and experience. Once mixed, it can be channeled through the chakra circulatory system, which is to chakra as the regular circulatory system is to blood, to any of the 64 chakra points on the body. Through various methods, the most common of which is handseals, the chakra can then be manipulated to create an effect that would not be possible otherwise, such as walking on water.

By mixing diffrent ratios of the two energys, new type of chakra can be formed.The most common product is elemental chakaras, which is use to perform elemental jutsus.Most ninja have a natural affinity to one type of chakra, but have the capacity to create elemental chakra apart from their own affinity. There are five basic elements, each stronger and weaker to another. The order is fire, wind, lightning, earth, and water,and then water loops back into fire, with each being weaker than the previous and stronger than the next. In addition to these five elements, certain kekkei genkai can mix elemental chakra to form new elements, such as ice(wind and water) and wood(earth and water). While alot of ninjas can use more than one type of chakra, thery can't use them simultaneously.

Normal Chakra
This blue chakra is known as the normal chakra and all ninja will produce this chakra no matter what. Normal chakra is not visible to the eyes when it is use to perform jutsu. This chakra is suppose to circulate inside the human body but sometimes it can surface outside the body. The only noticeable situation is when a person is really mad or want to increase all or as much chakra as possible, making it visible. Though this is rarely seen. The resulting form of energy produced when Physical and Spiritual energies are mixed together within the body. Then to use it, Hand Seals are performed. This allows the user to expel it out the body in the form of an attack, and requires different Hand Seals for different attacks. In these other animes, users can practically double their "Chakra-like energy" in what feels like 5 minutes. But in Naruto, Chakra takes time and lots of training to gradually build up.So what's really the key here is not actually having chakra, but being able to sufficiently control it. Because, everyone has Chakra, but only skilled ninja can correctly manipulate it to it's fullest extent. As an in-between stage here, some ninja, can partially control their Chakra. This means they can use their Chakra, but not effectively control it, which results in poorly executed justus, and more importantly, running out of Chakra early in a fight.Out of the many different types of jutsus: Ninjutsu, Genjutsu, Doujutsu, and so on, all require the use of Chakra. However, one of the types (Taijutsu) is different. It basically requires no Chakra use whatsoever. The ninja still needs Chakra to live, Taijutsu just doesn't use it. A standard attack like a punch or kick falls into this jutsu category.

Since Chakra is the resulting form of energy when 2 other energies are mixed together, having those other 2 energies become more powerful, will in-turn make the Chakra more powerful. These other two energies are Physical energy, which is collected from the body's cells, and Spiritual energy, which is built up through experience and meditation.

Therefore, practicing a jutsu repeaditly, will build up your expierence, thus giving you more spiritual energy, and then allowing more Chakra to be created. Which as a result then allows you to do that same attack with more and more power. This same cycle applies for Physical energy, except this time, instead of doing things like meditation, you could say, do push-ups.Molding Chakra means to extract energies from both the body and the spirit, then mixing them up in your body. And the amount of each energy will differ from the type of technique you wish to execute. In other words, the mixing will be different. You are not able to use your Chakra effectively. Even if you are able to mold a large amount of Chakra, If you cannot control the balance, your technique will only be half as effective or not executed at all. Wasting energy will create a weakness of not being able to fight for a long time

Elemental Chakra
Based on which jutsu the ninja uses, the type and amount of chakra will be different as would the elements you would be to employ. The five main elemental styles are also the five names for the Five Great Shinobi Countries: Fire, Wind, Lightning, Earth and Water. Each ninja has the potential to better utilize one of these styles and potentially more. A special elemental detecting paper is used to determine ones type. The paper comes from trees which are specially grown with chakra. When the ninja imbues the paper with a portion of their chakra, the paper will alter to reveal one's type. The paper will rip in two for Wind, burn for Fire, become wet for Water, fall apart for Earth and crumple for Lightning. For example Kakashi is a predisposed Lightning type, while Sasuke is both Lightning and Fire for the Uchiha clan specialty.The five elements themselves form a cyclical strong and weak relationship against each other. The element of Fire is stronger than Wind, as the usage of Wind merely increases the strength of Fire. So if a Fire jutsu came up against an equal strength Wind jutsu, the Fire jutsu is more likely to win out. Wind in turn is stronger than Lightning. Lightning is stronger than Earth and Earth in stronger than Water. Water finishes the cycle by naturally winning out over Fire.

Eight Gates Chakra
By breaking all of the body's limits on how much strength can be used, a Ninja can access 100% of their total power. These restrictions are known as Gates, 8 gates in all. One's own muscles and Chakra are so powerful that using them to their full capacity will destroy them, literally making the muscles explode or rip into pieces. This Chakra can only be used temporarily, and kills the user after about 5 minutes if all gates have been unlocked. The fewer gates unlocked, the longer the user has until the attack kills them. Because this attack is so dangerous it is classified as a forbidden jutsu. This technique will cause some of the Chakra emitting from the user to green, but don't be fooled this technique still uses normal chakra, just in extremely high amounts.

Cursed Seals
Orochimaru gives all of his subcordinates a cursed seal to increase their power in exchange of their free will. To do this, Orochimaru first bite the target on the neck(......), leaving a seal composed of three identical marks arranged in a circular pattern. the target then lose consciousness. Should the target survive, they would wake up with level 1 cursed state. The curse seal works by forcibly drawing chakra foro the body, giving them more chakra.

The seal difffer from user to user. When inactive, the cursed seal is just like a small tattoo. Once active to level 1, the tattoo spread to ther whole body. On level 2, the seal cover the whole body, giving demon-like alteration to the user, including yellow animalistic eyes. The curse seal slowly eat away the user's personality,like tailed beast chakra to their host.

Orochimaru developed the cursed seals through experimentation on a prisoner named Jugo, whose body naturally produces an enzyme that triggers a state on which the cursed seal is based. The difference between Orochimaru's seals and the unrefined enzyme are the effect they have: while the cursed seal is controllable, the unrefined enzyme produces uncontrollable rage in those exposed to it, including Jugo himself, and the effects cannot be controlled.

Demon chakra
In the Naruto world their exist 9 Biju (Tailed beasts), which is basicly a giant mass of sentient chakra. Each beast has a certain number of tails. The number of tails determine their power levels, ranging from a few times of a human(One-Tailed Shukaku) to almost infinite(Nine-Tailed Fox). During the Great Shinobi Wars, each country's Hidden Village tried to make use of the tailed beasts for military purposes, and competed for them. However, no one was ever able to truly bring the tailed beasts under control. The only way to partialy control them is to seal them within a human with a powerful sealing technique. The hosts of the tailed beasts are called Jinchuriki (人柱力 Jinchūriki, Power of Human Sacrifice). The host can tap in tho the chakra of the tailed beast for use and control. But tap in to such unnatral chakra is very harmful to the host, as the host's personality gets surpassed by the animalistic bloodlust of the beasts, and such intensity of chakra will harm the host if used for extended period of time.