Ep. 1: Gon and Killua train with Biscuit Krueger while digging through mountains.
Aired on March 3, 2004

1
During the Greed Island arc on 9/22, Gon and Killua undergo rigorous training under their new instructor, Biscuit Krueger. The pair acquires various abilities by engaging in physical exercises that involve digging through mountains. This session serves as a practical method for them to learn and develop their skills under Biscuit's guidance. The narrative focuses on the physical demands of the training and the specific techniques the boys master during this period of their journey.
Episodes
- Ep. 1 · Gon and Killua train with Biscuit Krueger while digging through mountains.
- Ep. 2 · Killua retakes the Hunter Exam after leaving the game while Gon trains with Biscuit
- Ep. 3 · Gon and Killua utilize abilities to obtain cards with Biscuit's training help
- Ep. 4 · Gon and Killua approach victory with over fifty cards while opponents unite to block their final moves.
- Ep. 5 · The trio returns with Hisoka and Tsezguerra to challenge Razor’s sports games