The only thing nagto did not show that iwanted to see was

[Dean-Winchester]

Nagato's incredible power stemmed mainly from his Kekkei Genkai, the Rinnegan. This was originally possessed by the Sage of the Six Paths, the world's first ninja and the founder of modern ninjutsu. The Rinnegan's abilities are largely unknown, but it does allow the user to use all types of elemental chakra, and allowed Nagato to master every technique Jiraiya taught him. It also enhanced his vision of chakra in a similar manner to the Hyuga clan's Byakugan and Uchiha Clan's Sharingan, allowing him to see the chakra of barrier techniques around Konoha and the chakra gathered at the feet of Tsunade.
Rinnegan - Naruto Wiki - Narutopedia


He did not show jiryaas techniques
HE did show aa jutsus tha made HANZO runaway

BUt he did no show using al elementss cause mosst of these threads on the manga section where discussing about elements



& i think there was still more do the rinnegan
But if he used it it really would have deystoryed existance
TALK ABOUT OVERPOWERD

(BUT NOw nagato belives in NARUTO )

[roflcopter]

He havent used other techniques because they probable were NOTHING compared to Rinnegan's.

[Preta]

Well of course Rinnegan has many techs we did not see, it can master any jutsu after all; and I'm sure it had techs far more powerful than the already overpowered ones we saw. However you must remember that he had Naruto dead to rights, but could not kill him because he needed him alive, so most likely there were certain techs that he could not use simply because they were too powerful and would have certainly killed naruto. Also, nagato was still very young and, by his own admission, had not mastered the Rinnegan anywhere near the level of someone like the sage, so the Rinnegan itself contains many powers and secrets that Nagato never got a chance to learn.

I personally hope we see them when the Sage returns, as is my theory, that the creator of ninjustu will return, be disgusted at what they have turned his teachings into, and start punishing everyone. I see no reason for Kishi to tell us about the Sage and give such an in depth history of those eyes if we will never get to see it. Could go either way though.

[Buu]

I wanted to see that giant moon jutsu

[Kazamori]

I wanted to see that giant moon jutsu

Well , we saw...but it was way way smaller :D

[Gray Fullbuster]

I wanted to see him swallow the whole universe. But sadly, he just had to go and die. >.>

[Crutch Kaguya]

Nagato couldn't, his original body is useless. That is why he has to make 6 Pain's and him having control over all of them.

[Dean-Winchester]

hope they change it for accel 3