Embarking on the deep-sea adventures of the Blue Hole requires players to balance underwater exploration with the fast-paced demands of running a successful sushi restaurant. While many tasks in the game allow you to progress at your own comfortable pace, certain time-sensitive side activities can easily catch unprepared divers off guard. One such critical encounter is the hidden mission titled Revenge Time, which forces players to track down and defeat an aggressive ocean predator during a specific weather window.

Understanding the Quest Requirements and Timing

Unlike standard exploration tasks that wait indefinitely for you, this mission is strictly tied to stormy weather conditions in Chapter 3. The quest naturally triggers after you speak to Clara, an elderly lady seeking vengeance against the legendary Great White Shark named Klaus who took her husband. To initiate the encounter, you must actively dive into the water during a designated stormy night when a massive underwater vortex manifests in the shallow depths.

Many players accidentally fail or miss this unique opportunity because they overlook the explicit time constraints attached to the prompt. If you choose to skip diving on that specific rainy night or spend your evening serving customers at Bancho Sushi instead, the vortex will vanish completely. Paying close attention to your daily calendar guarantees you will not lose out on this high-stakes combat encounter and its subsequent rewards.

Locating the Underwater Vortex

Once you plunge into the dark waters during a storm, your primary goal shifts to finding the rotating aquatic anomaly hidden near the surface layers. You should swim carefully through the shallow zone, typically between a depth of twenty to fifty meters, while keeping an eye out for a swirling current. The rough background audio and moving currents will help guide your movements toward the exact location of the hidden portal.

Before entering the vortex to confront your target, it is highly recommended to explore the surrounding shallow waters to gather extra oxygen canisters and useful melee items. Entering the arena fully prepared ensures that you will not run out of precious breath during the intense struggle that follows. Once you step through the swirling current, the boss arena loads immediately and the battle for Clara's vengeance officially begins.

Defeating Klaus the Great White Shark

Confronting Klaus requires excellent positioning, quick reflexes, and a highly upgraded ranged weapon to safely pierce his thick hide. The creature possesses devastating biting lunges and can create powerful underwater currents that knock Dave backward across the screen. Utilizing an upgraded sniper rifle or a high-tier dart gun allows you to consistently inflict damage from a relatively safe distance.

During the second phase of the fight, the predator becomes significantly more aggressive and frequently charges horizontally across the aquatic arena. You must learn his predictable attack patterns and utilize your dash capability to swiftly dodge upward or downward right before he strikes. Consistent patience and careful resource management will ultimately help you triumph, allowing Clara to secure her peace and rewarding you with rare crafting components.