Naruto mastered the Rasengan, passed it down to others like Konohamaru, and developed new variants. Boruto, Naruto's son, ...

Though these Naruto characters felt a little unimportant at first, they stepped up to the plate and changed the story out of nowhere.

He let his arm get impaled by Kabuto's kunai (a violent scene ... and held him in place as he unleashed a resounding Rasengan. It was a brutal tactic, but Naruto's intelligence should be lauded ...

at a level higher than Kabuto. As fans must remember ... Yes, Jiraiya acted as a medium for Minato and taught Naruto his Rasengan. However, his contributions don't go much further.