The Octoseeker is a helicopter made by the Octarians for reconnaissance and attack. It is piloted by a (presumably elite) Twintacle Octotrooper, which uses a joystick to move the craft, and a button to raise and lower it. The front contains a window for the Twintacle to see out; this window is uninkable. The back contains a door and an [unit], presumably to keep the pilot comfortable.
Behavior
They are flying enemies and will patrol around an area, raining down ink. If they spot the player, they will try to fly directly above them before falling down to crush them. They will stay on the ground for a while, letting the player climb up on top of them. They look and behave similarly to an Octostomp.
The Octoseeker is the rarest enemy in the [Splatoon 2|entire game]], with seven (7) instances overall (6 in Octo Canyon and just 1 in the Octo Expansion.