sharingan is based on the opponent/s strengths

[UzumakiAzuilmarxG]

one thing ive notice is that the rinnegan seems to self activate when ever it upgrades, as if like it takes a stronger oppent than the sharingan wielder to force to evolution/change. when ever sasuke is outclassed his eyes evolve, when madara was attacked by the kages together they evolved too, same with kakshi when he is about to eat it... waddaya think????

 

[TheItachiUchiha]

It's just how you know when shits about to get real

 

[UzumakiAzuilmarxG]

yup, it can see an ass wuppin and it decides to get stronger....

 

[Sephy100]

one thing ive notice is that the rinnegan seems to self activate when ever it upgrades, as if like it takes a stronger oppent than the sharingan wielder to force to evolution/change. when ever sasuke is outclassed his eyes evolve, when madara was attacked by the kages together they evolved too, same with kakshi when he is about to eat it... waddaya think????

You can't evolve the final level. Madara already had Rinnegan before the 5 kages. Kakashi is a victim of plot no jutsu. Sasuke experienced trauma on an unimaginable scale and had his mind broken so they evolved. He got EMS by having Itachi's eyes transplanted; not by being outclassed by anyone.

 

[sytren]

I think that would take part from the adrenaline in a person's body driving them to go beyond their normal limit.

 

[Scooby Doo]

You can't evolve the final level. Madara already had Rinnegan before the 5 kages. Kakashi is a victim of plot no jutsu. Sasuke experienced trauma on an unimaginable scale and had his mind broken so they evolved. He got EMS by having Itachi's eyes transplanted; not by being outclassed by anyone.

^This

 

[UzumakiAzuilmarxG]

You can't evolve the final level. Madara already had Rinnegan before the 5 kages. Kakashi is a victim of plot no jutsu. Sasuke experienced trauma on an unimaginable scale and had his mind broken so they evolved. He got EMS by having Itachi's eyes transplanted; not by being outclassed by anyone.

you need to look at the fight at the valley of the end, it shows naruto forced the evolution by kickin his ass in 1 tail mode

 

[UzumakiAzuilmarxG]

You can't evolve the final level. Madara already had Rinnegan before the 5 kages. Kakashi is a victim of plot no jutsu. Sasuke experienced trauma on an unimaginable scale and had his mind broken so they evolved. He got EMS by having Itachi's eyes transplanted; not by being outclassed by anyone.

the only reason why madara got rinnegan was because Hashirama Senju beat it outta him...had they never fought i doubt he would've unlocked it, plus he died shortly after getting rinnegan cuz it was too much for his no body and will having ass life

 

[Suigetsu13]

yup, it can see an ass wuppin and it decides to get stronger....

^^This