Note that some of the techniques listed here are allowed, but only upon completing special missions. Some only a certain number of people can learn and use. The list may change over time, as the rp plot advances forward.
Forbidden for anyone to use
Rinningan (sp)
Yin - yang chakra
Yin chakra
Yang chakra
Edo tensei
Severely limited (1 - 3 can learn this upon completion of a special mission)
Water release rasengan
Lightning release rasengan
Fire release rasengan
Wind release rasengan
Wind Release: Rasenshuriken
Earth release rasengan
Kirin
Rakiri
Sage mode
Flying Thunder God Technique
Limited (3 - 5 people allowed to learn upon completion of a special mission)
Chidori
Chidori variations
Rasengan
Rasengan variations
Imperfect sage mode
Sage Mode Related Techniques
((more will be added, as the series progresses.))