Have no clue about the validity, but sounds a bit like Kishimoto... it drags on...
Jiraiya and the frogs use the Kanashibari genjutsu which mentally immobilizes the three bodies of Pein and defeats them.
Immediately, another Pein appears, Jiraiya gets attacked and loses an arm.
Pein Rikudou (the 6 bodies including the 3 defeated ones) appears.
"Pein" is the inclusive nomenclature for all 6 bodies.
Jiraya says "y.. you..." and onto next week.