Girubokku

Girobokku is the Japanese name for an otherwise unnamed floating eye enemy from Zelda II: The Adventure of Link.

These enemies greatly resemble Moas in being giant floating eyeballs; however, they fight rather differently, traveling around the screen for a short distance before opening their single great eye, which is Link's opening to attack.

Another difference is that Girobokku are always visible, whereas Moas usually require the Cross to be seen.

They may be somehow related to the Patra or Digdogger.