Hashirama's Sage Mode

[Great Mkhize San]

How does Hashirama have sage mode, Does his senju blood and wood element make it stronger, can anyone else gain sage mode in a way similar to how Hashirama got it and if yes, is that what Tsunade has when she gets those lines i her face while the leaf was fighting Pain?

 

[jvega]

Sage of sages...i don't know. I was actually thinking about that earlier today. Sage of...buddha or whatever the hell the thousand arm statue was...

 

[The Necromancer]

We don't know, no, only if they have strong chakra, no.

 

[FreakensteinAG]

Sage of...buddha or whatever the hell the thousand arm statue was...

Well....Like Naruto, his "Senjutsu" is simply more powerful developments of Jutsu he already has: Mokuton. His Sage Mode just increases the power of his attacks.

If I know Kishimoto's Parallelisms, Hashirama's Sage Mode is from the Slug Sage.