"Unite x Impact x Bungee Gum" – The climax of the battle against Razor.
Picking up where the second OVA left off, follows Gon and Killua as they continue their intense training under Biscuit Krueger to prepare for the end-game of Greed Island. The story centers on two major conflicts:
The OVA features the opening theme "Believe in Tomorrow" and the ending "Moshimo Kono Sekai de Kimi to Boku ga Deae Nakattara" by Sunflower's Garden.
One of the arc's most famous sequences, where Gon, Killua, and Hisoka must form an uneasy alliance to defeat Razor , a powerful Game Master and friend of Gon's father, Ging.
"Reunion x Hisoka x Sports Battle" – The start of the high-stakes dodgeball game.
"Game x Everything Cleared x Finale" – Gon officially completes Greed Island and uses the "Accompany" card to find Ging.