Optional mini-boss
How to Beat Tuna in How to Fish
An optional fight on Rocks. Here is what spawns it and how it goes.
Quick facts
Island: Rocks
Spawned with: Professional Boss Lure
Handing in the trophy opens: The Albatross fight, since the caught Tuna is what draws it in
How to beat it
- Fought on a small island where its attacks are hard to avoid — bullet upgrades matter more than positioning.
- Do not sell the Tuna afterwards. It is the bait for the Albatross.
Before you trigger it
- Buy the spawn item first — without it the boss does not appear at all.
- Stock healing. There is no shop once the fight starts.
- Leave inventory space for the drop.
Compiled from published community and press guides and cross-checked between them. Not yet verified in-game by this wiki — corrections welcome.