For the route players commonly call the third island, follow the documented Pufferfish chain: speak with the local task character, bring a normal Needlefish, Bowlfish, or Seahorse, keep the carrot, defeat Pufferfish, and return the tail trophy. The sequence is community-tested. The island's official number and complete map position remain pending confirmation.

The direct third-island progression answer

The available transcript gives a complete operational chain even though it does not establish an official numbering label. Use the quest state, not the nickname, to identify the route. If the local task requests an endangered fish and rewards a carrot, you are on the documented Pufferfish sequence.

Pending confirmation: whether the game officially names this route third in every progression state. Co-op saves, patches, or skipped exploits can make community numbering unreliable. Trust the live travel interface and local quest text first.

Speak with the task character before fishing

Read the local request before collecting or gambling catches. The character response tells you whether you have the correct form. This avoids losing a required item and separates normal quest fish from special collection versions.

Capture the exact task wording if your sequence differs from the transcript. A later patch can alter prerequisites or route presentation. Do not keep consuming items until the current requirement is clear.

Supply an accepted endangered fish

The recorded choices are Needlefish, Bowlfish, and Seahorse. Bring one normal accepted version. A drip creature was rejected in the captured run, so preserve the special form for Fishipedia and continue looking for the ordinary task item.

The reviewed sources do not provide guaranteed coordinates or spawn odds. Verify the on-screen name and keep the catch secure. Seagulls can steal unattended catches in recorded gameplay, which can reset an otherwise correct search.

Use the carrot to start the Pufferfish chain

The accepted hand-in provides the carrot used in the next stage. Keep it away from sale or gambling decisions and assign a carrier in co-op. Confirm the boss interaction before spending the item.

Prepare recovery and a focused primary weapon first. The community run demonstrates an SMG with a compensator, laser, and expanded ammunition, but the setup is an example rather than a mandatory best build.

Handle rolling and poison phases

Pufferfish uses a rolling attack that rewards early movement and readable space. Community tactics use terrain to interrupt direct approaches while maintaining an escape route. Do not treat geometry as a guaranteed permanent lock.

Near half health in the recorded fight, poison changes the usable space. Avoid stacking the team on one path and save recovery for a stable opening. Judge the transition by visible behavior because exact thresholds and damage values are not verified here.

Return the trophy and check the new route

The resulting tail trophy is a progression item, not ordinary meat. Secure it after the fight and return it to the relevant character. Then check quest, achievement, and travel state separately.

In co-op, decide who carries the trophy before the final hit. Confirm that the intended player received credit and that the next route appears. If not, recheck the hand-in before repeating the boss.

Island numbering pending confirmation

Pending confirmation applies to the official island name, number, route order, and map label. Patch 1.0.5 fixed travel to a locked island, so exploit-driven ordering should not become a guide standard. Patch 1.0.4 also changed a final-area path, proving route details can move.

Use this page for the verified Pufferfish progression logic, not as proof of a universal map number. Record the displayed route in your version when building a personal checklist. Future official map evidence should replace the community numbering if they conflict.

For a clean route capture, begin at the travel screen, show the destination label, then record the task, carrot, fight, trophy return, and newly available route without skipping steps. This establishes the actual progression order for that save. Comparing the same sequence on a fresh patched save would reveal whether the community third-island label is stable.

Do not use a locked-island exploit to validate the number. Patch 1.0.5 explicitly fixed such travel, so exploit footage can show geography without proving normal progression. The quest-complete route remains the dependable standard.