Originally Posted by Konnaha_yellow_flash
I am going to call it here... Hashirama has a forbidden jutsu that he can use to get past susanoo... It is the only way he could possibly be able to get through that thing... And the kinjutsu pretty much costs hashirama his life, being why he dies a couple years later...
It is the reason why madara claims only hahsirama could stop him...
Susano'o is overrated. Hashirama will just grow a huge wood underneath it and Susano'o will just stumble. Simple.
EDIT: Perfect Susano'o? Hell, the bigger and with two legs, the harder they fall.