Naruto's Ninja Handbook

is episode 78 episode of the original Naruto anime.

Synopsis
Naruto's determination to save his friends abolishes the fear Gaara instilled in him earlier. Rejuvenated, Naruto summons one thousand shadow clones and performs a large-scale combo attack. To fend off the attack, Gaara completes his Shukaku transformation: He becomes the beast in its giant form and destroys all of the shadow clones in the process. Using his sand, Gaara tries to crush Naruto, but Naruto summons Gamabunta to break out of the sand at the last second. Gamabunta and Gaara exchange blows, but Gaara forces himself to sleep and allows the spirit of the Shukaku to take over his body. Gamabunta is forced on the defensive. Needing to get close to Shukaku to wake Gaara up, Naruto and Gamabunta transform into a giant nine-tailed fox to fight.