How to Fish Boss Guides

Boss dossier

Pufferfish Boss

Fight the Pufferfish around trees or solid cover instead of in open ground. Keep the boss on a repeatable circle, fire when terrain redirects it, then move before it closes the gap.

Guide status

published

Reviewed 2026-08-23. This guide is updated when key route details can be checked.

Field guide

01Why the Pufferfish stops so many runs

The collected launch material consistently describes the Pufferfish as fast, hard to outpace and punishing when players stay in a straight damage race. That makes positioning more important than an unverified weapon ranking. A larger purchase may help a run, but it does not replace a route that gives the player time to move.

The useful takeaway is not that the boss has one fixed weakness. It is that solid terrain can interrupt or redirect a physics-driven pursuit long enough to create a safer firing window. Because those interactions vary with the arena and the current attempt, this is a repeatable approach to test rather than a guaranteed lock.

02Set up a route before the first shot

Choose an area with more than one piece of solid cover and make sure the space between them does not force a dead end. The route should leave room to turn without being trapped between the boss and the water. A simple loop is easier to repeat and judge than a last-second improvisation.

Use the cover to create separation, not to stand still behind it. When the Pufferfish changes direction or has to correct its path, take a controlled shot and start moving again. If the same corner repeatedly fails, change the path first so that one visible adjustment can be tested at a time.

03Handle damage windows conservatively

Bring a weapon whose timing is already familiar rather than chasing a damage number that the material does not verify. The decisive question is whether a shot, recovery and movement fit inside the gap that the route creates. Reloading or lingering in the open removes the advantage terrain was meant to provide.

The Pufferfish page does not publish a required loadout, health value or time-to-kill. Those details are not supported by the material and can change with balance updates. Treat a clean route, predictable movement and inventory space as the confirmed preparation before adding any personal loadout preference.

04Give co-op players separate jobs

In a crew, let one player keep the boss moving on the route while the others shoot from separate angles. Spreading out reduces the chance that a single charge crosses the whole group. Call out a target change immediately so the former runner does not cut across the new runner’s line.

Co-op is not evidence that every attempt becomes easy. The collected material notes unstable physics and aggressive behavior, so the team should agree on a reset point and protect important drops when the encounter behaves strangely. Clear roles make the result easier to recover even when the fight is chaotic.

05Keep the distinct quest drop after the fight

Do not assume ordinary meat chunks are the progression hand-in. Treat a more unusual fin, half-piece or trophy-like drop as the likely quest item before regular creature material. Pick up the distinctive part first and try the related quest hand-in before selling, eating or gambling with the rest of the catch.

Player descriptions do not always use identical item names, so this guide does not invent a definitive label. Look for the visually distinct piece and the quest response rather than relying on a nickname. In co-op, agree who has it and keep that player with the group until the hand-in is complete.