There was explicit mentions multiple times about his laboratories and about his illegal experiments while he was still in the village and afterwards all the experiments on children he kept doing over the years to absorb their powers.
Comment on [Anime/Manga/Naruto] What is Orochimaru?
akunohana@piefed.blahaj.zone 1 day agoThanks! Do you have any references/sources on that? It’s well known that he would do anything - including playing with human lives - in his pursuit for eternal life and the acquisition of all techniques in existence. But I have never heard about that endeavor being the reason he got those snake eyes and other… Attributes xD
devfuuu@lemmy.world 1 day ago
underscores@lemmy.zip 1 day ago
it’s explained more in the manga, but he essentially did a lot of taboo experiments and was outcast iirc
MentalEdge@sopuli.xyz 1 day ago
He’s already modified his body extensively to extend his life.
He is the same age as Jiraya and Tsunade.