A detailed map shows Onigashima as a giant horned skull embedded in the mountain range, with a castle inside. Narration explains: "THE GIANT SKULL IS PART OF THE MOUNTAIN RANGE, AND THERE'S A CASTLE INSIDE. THANKS TO THE BLUEPRINTS WE MANAGED TO ACQUIRE, WE KNOW THERE'S A SECRET PATH BEHIND THE CASTLE. ONIGASHIMA IS AN ISLAND SURROUNDED BY MOUNTAINS!! THE ONLY WAY TO GET IN IS THROUGH THE MAIN DOOR." The alliance fleet sails through rough seas toward the island. "AND ATTACK KAIDO WHEN HE IS DRUNK!! WE ARE GOING TO SEPARATE OUR FORCES INTO TWO, MAKE THEM GO AROUND THE SKULL, AND ENTER THE CASTLE THROUGH THE SECRET ENTRANCE..." Kin'emon, sweating and wide-eyed, reacts in shock with a loud "HUHI!" while an ally growls, "HE'S STILL OVERESTIMATING YOU!!" Another figure notes, "I SEE, SO THAT WAS THE DECOY STRATEGY MEANT TO TRICK KANJURO..."