A Nightmare Transformation! Frieza's Power-Level One Million?! (悪夢の超変身！戦闘力１００万のフリーザ,Akumu no Chō Henshin! Sentōryoku Hyaku-man no Furīza, lit. "A Tormenting Super Transformation! Freeza's One Million Fighting Power!") is the thirty-seventh overall episode of the Dragon Ball Z Kai series. It first aired on Fuji TV in Japan on December 20, 2009. Its American premiere was October 20, 2010. Its Dragon Ball Z counterparts are "The Fusion" and "Fighting Power: One Million??". The song "Only a Chilling Elegy" is played when Frieza impales Krillin.
Following his resurrection and arrival on planet Namek, Piccolo finds an injured Nail and performs fusion with him, increasing his power substantially and drastically. Meanwhile, after fighting the earthlings and Vegeta in his first form, Frieza decides after some spiteful words from Vegeta, to transform into his second out of four forms. His power skyrockets to one million and he begins his reign of terror by creating a Death Storm to show off his power then rams into the sky towards Dende. Krillin throws Dende out of his grasp and is caught by Frieza instead, being impaled on his horn.