Sage Mode

Sage Mode Naruto.
During sage mode, his strength, speed and durability is enhanced. If Naruto draws in too much natural energy, he will become a frog. His jutsu attacks also become much more powerful than before. However, he cannot stay in sage mode for too long. Recently, he managed to use cones to gather natural energy while he battled. Once he ran out of senjutsu chakra, he uses a summoning scroll to summon and dispel his clone so that he can restore his seijutsu Chakra.
Sexy Harem Jutsu
This jutsu combines both the sexy jutsu technique and the clone technique to create a lot of clones of beautiful and sexy women.

Different Chakra Forms of the Kyuubi Power
Naruto throughout the series has shwon great display of being able to manipulate his chakra level from the lowest of the low to the highest of the high, if not at will. One of the things that makes Naruto such a fighter to be head and shoulders above the rest (in the Part II continuity at least, not the time period when he was a child, as he failed almost everything he tried to succeed in) is the Fourth Hokage's legend, the nine tailed fox, Kyuubi, sealed within him. Kyuubi, at time of need, offers his powers to Naruto in a slight amount, due to the fact that if Naruto were to die, then he would die with him. Later on the series Naruto is able to (with his master Jiraiya's training) manipulate the foxes energies to some extent, making him a near unbeatable foe when it come to fighting.

Two different forms of chakra for 0 tail Naruto. The first stage that has been shown is the more bestial stage then the other form. In this form Narutos' whiskers became longer, darker and more noticeable. His nails grow longer. His teeth start growing fangs and become longer. His jaw is widened. All of his previously injuries are healed at a remarkable rate. He also gets a power boost in this form. His speed, strength, agility, charka, etc are all increase. Narutos' eyes also become red and the pupils become narrower like an fox. In this form Naruto is in full control but he is shown to be a lot more feral and animal like. He once usually travels on all fours. It appears that this charka is triggered by rage, but is later accesed when Naruto wants the fox's chakra.The other version is when Naruto actual goes to the Kyuubi in his body. Naruto demands the kyuubi to give him his charka which he calls "Rent" for the kyuubi staying in his body. The kyuubi gives Naruto his charka out of respect for his courage to talk to him like that. Naruto body doesn't change at all but a red charka flows around his body like DBZ. He gets a power boost but its hasn't been said which one of these forms are more powerful.
One-tailed Form

1 Tail Form
This is the form after 0 tail form. This form is more powerful the previous form. Naruto has a lot of the qualities of the last form but this makes him looks more like the kyuubi then the previous form. His body is engulfed with chakra that takes the form of a fox. The chakra that engulfs him appears to protect him from damage. That may be true but it also puts constant damage to Naruto body. So he fights while being constantly hurt and constantly healing at the same time. He is able to shoot a chakra hand that extends from the chakra that is surrounding naruto. He is also able to perform Rasengan with the help of the chakra. Naruto is still in control in this form.
Two-tailed Form

2 Tails Form
In this form Naruto has all the same abilities as the last. But of course he is more powerful. He looks more monstrous then before. His eyes are widened and the outside of eyes become black. His teeth become sharper and longer. His mouth becomes black too. He has two tails in this form. And the Kyuubi is more noticeable in this form. You see more similarities between the two in this form. Naruto still is in control in this form.
Three-tailed Form

3 Tails Form
This form is more powerful then the last and Naruto has the hardest time keeping in control. He could lose control at any moment in this form. In this form the chakra bubbles a lot more then the last ones. He is able to counter a lot of his opponent’s attacks by roaring. In this form he has 3 tails.
Four-tailed Form

4 Tails Form
This is the latest form we have seen in the Naruto Universe. It is the most powerful out of all the other versions. In this form Naruto body is completely tared off of his body and the Kyuubi Chakra acts like a skin and mixes with naruto blood. In this form it has been stated that he is miniature kyuubi. Naruto has absolute no control in this form. Naruto is able to all the same abilities as the last couple of forms but it appears to be harder for Naruto to move in this form. In this form just a swing of his arm can create destructive effects or a simply roar. He was able to create a ball of chakra and swallow it and fire it with explosive effects. Not only is this form Naruto most powerful it is also his most dangerous to himself form. Apparently this form can shorten Naruto Lifespan. While in this form every one of Naruto cells are being destroyed. But more cells are being created at the same time. The human body has a limit to the amount of cells that they can produce in their lifespan. If Naruto continues to go into this form his lifespan will be shorten.

It has been reviled that Naruto only have the yang(light) side of the Ninetails soul locked away in him. It unknow where the yin(dark) half of the Ninetails is, it is speculated that that may be the part that the Fourth sealed away when he gave his soul to the Death God.
Six-tailed Form

6 Tails Form
After pein almost killed Hintata, Naruto turns into a six-tailed mini- kyuubi.This is the most powerful version so far,even more than the four-tailed kyubbi.It looks like the four-tailed kyuubi but it has seemingly bones covering its body in some parts. Unlike the other forms this six tailed Naruto can break the seal used in the First Hokage's necklace. He can also within gravital forces and use them to his advantage.
Eight-tailed Form

8 Tails Form
The Eight-Tailed Transformation is the hifghest transformation Naruto can make so far. However, he only misses the fur, the nineth tale and the additional powers from the transformation higher than this. Naruto feels intense pain during this transformation and would destroy anything that would hurt him. Its power is intensely unparalleled as it can break Pain's Chibaku Tensei. An image of his father appeared in his mind to stop him from losing total control and to stop the Kyuubi from taking over his mind. However, his father said that it would be the last time that he will repower the seal for Naruto to stop the Kyuubi.
Nine-Tailed Form

9 Tails Form
Naruto made a failed attempt to transform into a Nine-tails version of the fox, but this ended in failure.
Nine-Tails Chakra Form

Nine-Tails Chakra Form
After much heavy training to bring the Nine-tailed Fox under his control. Naruto was finally able to tame the beast and meld the charka together. He was trained for this by a fellow Jinchuuriki named Killer Bee .