Saiyuki

Season 1, Episode 7

Episode Title: Farewell at Dusk

Air Date: 2000-05-16

Overview:

When Sanzo is severely injured, Goku's head ring, which controls the balance of his magic, falls off. Goku can now deliver devastating blows. Rikudo realizes his disadvantage and flees. Goku loses control, become delirious, and attacks Sha Gojyo and Hakkai!