Mackerel is an Fish in NieR: Automata.
"Caught in the sea. Can be exchanged for money."
- "A common poisonous fish. It congeals fluids inside android bodies when eaten, so its consumption has been outlawed. Strangely enough, it has no effect on humans"
- Ends the game (Ending K)
Where to Find\Fishing Location
- Jackass gives this to you
- Flooded city