Scavenge Toad

Four Eyed Frog refers to an unnamed frog-like monster found beneath the Starting City in Sword Art Online.

Background
Although it is found beneath the Black Iron Castle at the first floor, its power level can be compared to monsters that are around level 60. The creature uses its tongue as a weapon and drops the item «Scavenger Meat».

Appearance
The monster is a huge green slimy frog-like creature with two glowing red eyes on either side of its head. It has two short horns protruding from the top of its head and red markings around its eyes and arms.

Aincrad Arc
While searching for Thinker with Asuna, Yui, and Yulier, Kirito fought several of these creatures and defeated them with ease. He gathered the Frog Meat that they dropped in the hope that Asuna would cook them for him only to be disappointed when she tossed all of them away in disgust.