Board Thread:Versus Debates/@comment-26005711-20160124210949/@comment-734582-20160127095220

BakumatsuWarrior wrote: Minato rarely worked with Sage Mode. In fact, his sage mode is nothing more than an asspull from Kishi. If you look at Minato's complaints about his Sage Mode, and then Naruto using it in combat, it's pretty much the same.

Minato only recently learned Sage Mode. He never got the chance to incorporate it into his battle styles, his jutsu, etc. Considering Naruto needed it to be safe from Rasenshuriken's destructive effects, it's likely that Minato ran into similar problems with the creation of Rasenshuriken. Since the toad sage didn't mention Minato learning his own Sage Mode (he said Jiraiya had gotten the furthest) it's probable that he learned it either directly from Jiraiya, or he perfected it on his own.

Either way, it's clear the Minato we know is only a shadow of what he could've been, which i think was very much intended by Kishimoto.