Board Thread:Theories and Speculation/@comment-26005711-20150623145338/@comment-3568954-20150630215316

first off all we have to say this right off the bat orochimaru says that he could subdue tobirama but that hashirama was different had he wanted to he could have easily overpowered orochimaru.

2nd off all the edo tensei has 1 weaknesses if the person revived knows the hand seals that summoned them they can rescind the contract releasing them so no matter how strong or weak the person is all they would have to do is known the correct hand seals

so it is a yes and a no

as yes hashirama could overpower kabuto or orochimaru and yes he could release himself if he knew that it was possible minato as well its just that we don't know if either of them knew the weakness to the technique