A type of boss salmonid of Splatoon's Salmon Run. This ink-hovering contraption is piloted by a single smallfry that will use missile launchers to fire at freelancers. They can generally be taken out by tossing a splat bomb into each individual basket.
A meme among the community is showing freelancers tossing a bomb only at one basket which leaves the Flyfish continuing to cause havoc.
