The Game Tournament Arc consists of episodes 6 and 7 of the D Frag anime where the main plot is that Hachi Shiou challenges Kenji to a duel and the winner gets Rokas bag (also known as the hood of darkness) but Roka intervenes and joines in the duel and Chitose escalates the whole thing by turning the whole thing into a school wide Tournament with about 40 contestents Kazama must battle his way through the contestants and defeat Roka or else as Sakura said "The only bag he'll be getting is a body bag !"
D-Frag! - Zipper Incident