Big Octos in The Wind Waker have eyes on every side of their bodies. That would give them a 360-degree field of vision.
A 360-degree field of vision is something completely incomprehensible to me. I can imagine something like a 180-degree field, but a 360-degree one? What happens when the ends meet? I believe a number of animals, insects, etc. actually do have 360-degree fields, but to me, a simple human boy, the concept itself is jarring.
Now, to once again try to imagine a new color...