Board Thread:Versus Debates/@comment-29899821-20160317090255/@comment-3965545-20160512180814

"The Ninja Escapades (忍活劇, Ninja Katsugeki, Literally meaning: Ninja Action Movie) are three short playable stories featured in Naruto Shippūden: Ultimate Ninja Storm Revolution, accompanied by original anime footage produced by Studio Pierrot. Masashi Kishimoto provided new character designs and editorial supervision for all three stories."

Right from this wikia. He approved of and was the editorial supervisor for the stories meaning if he didn't agree or didn't like it he changed it to his vision and how he liked it, meaning that he indeed had huge part in the story.