How to Beat the Pufferfish Boss in How to Fish

Updated Aug 22, 2026 · includes the Patch 1.0.4 nerf (Aug 21) · launch-week community reports

How do you beat the Pufferfish boss in How to Fish? Fight around trees or solid cover instead of open ground. Keep the pufferfish on a predictable circle, fire during the gap terrain creates, and move before it reconnects. In co-op, the targeted player runs the route while teammates shoot from separate angles.

Why the Pufferfish Is a Wall

Launch-day players consistently describe the pufferfish as extremely fast, durable and capable of ending an attempt quickly. Some report struggling even with high-end weapons. This is not a fight where buying one more upgrade automatically fixes poor positioning.

The upside is that the boss's large body works in your favor: cover that barely interrupts a smaller creature can disrupt the pufferfish's route. Players report it getting caught on terrain more often as the fight drags on, but the behavior is physics-dependent — treat it as an edge, not a guaranteed lock.

How to Trigger the Fight

The pufferfish is the third main-story boss, reached on Island 3. Finish the tourist's requirement to get the carrot, which leads to the boss lure — without the lure, the fight cannot start. If the pufferfish will not appear, complete that quest chain before spending anything on gear.

Carrot setup, the circling route and the later phases are all part of the same fight; do not summon it while boxed between the boss and the water.

The Core Strategy: Terrain Over Weapon Stats

Build your route before the first shot. Identify two pieces of cover — trees or solid props — that let you circle without entering a dead end. Clear your escape path: small props and shoreline angles can turn a clean loop into a collision.

Let the terrain create the firing window. Shoot while the boss is rerouting, then move before it closes the gap. Keep the loop boring: a repeatable circle is safer than improvising a new direction every pass.

Solo Approach

Enter with a weapon whose timing you already understand. The important stat is not an unpublished damage number — it is whether you can fire and get back to movement inside the gap you create. Save ammunition for clean windows and avoid reloading in the open.

If the pufferfish catches you on the same corner repeatedly, change the route, not just the weapon. A wider circle reduces abrupt turns; a tighter one makes its large body interact with cover more often. Test one change at a time so you can tell which pattern survives longer.

Co-op Roles

Community advice is clearest in co-op: the targeted player runs circles while everyone else fires. Spread shooters around the arena so one charge does not sweep the whole team. Call out aggro changes immediately — the previous runner should stop crossing the new runner's route.

Roles beat duplicate positioning. Two players stacked behind the same tree create one target and one firing angle; separate angles keep the boss moving between threats.

Patch 1.0.4 Nerfed It (Aug 21, 2026)

Developer Patch 1.0.4 officially nerfed the pufferfish, along with the whale. If you are reading launch-week guides that call it overtuned, check the current version notes — the fight is easier than at launch, but no tactic works identically in every physics interaction. Terrain and team roles improve the attempt; they do not promise a zero-risk kill.

After the Fight: Keep the Trophy

Do not hand the next quest giver ordinary meat chunks. Players report that the progression item is the distinct half-piece, fin or trophy with a visible bone-like shape. Pick it up, keep it in one player's inventory, and return it before selling or eating other parts.

If you are still getting one-shot, stop spending attempts until you have a route that avoids the first few charges, and check whether travel or weapon purchases emptied the cash you needed for supplies.