It doesn't. the first episode shows the fox attacking the village but further than that it has never turned up. there are episodes when you see the fox insideNaruto but you never see all of it because it is trapped by the "seal used by the fourth hokage. naruto came very close to releasing the fox during his fight with pain.
Shippuden Episode 43.
No,it is not stronger than a nine tail fox
The nine tail fox chakra is very immense but it does not have an infinite supply.
No.
avatar state is better than nine tail fox. the avatar state masters the four elements automatically. plus avatar state causes more destruction than the nine tail fox. who ever think the nine tail fox is better they are idiots.
Kurama
nine tail demon fox
Not really
no
a nine tail is a demon fox that have unlimited chakara (kind of like strenght) and go watch naruto
the episode has not been released yet only on the manga he goes up to eight tails SPOILER and then the 4th appears inside of naruto
The reason why Naruto have the Nine Tail Fox is because, The Nine Tail Fox was once a demon that was destroying a village that must be destroyed but couldn't. The only way it was to be Disappeared was to be sealed into someone. That Someone was Naruto. Naruto was a baby, and his Father Minato(4th Hokage) sacraficed his own life for his son Naruto. When years past, Naruto was able to control The Nine Tail Beast.