Tonberry
A Tonberry is a mysterious creature from the Final Fantasy games. It made its first appearance in Final Fantasy VI under the name "Pugs", and it was the only one of its kind in the game; subsequent games featured them as recurring encounters. Tonberries are often found in caves or ruins, and frequently guard coveted treasure or valuable items.
A Tonberry is quite small, usually no larger than two or three feet tall. It has green skin and a round head with a small snout and round yellow eyes; it walks on two legs and resembles, to some small degree, a bipedal lizard. However, it always wears a hooded cloak, usually plain brown or grey in color, and its dolphin-like tail can be seen peeking out from beneath the hem. A Tonberry always carries two things: a lantern in one hand to light its way through the caves, and a long, sharp butcher's knife in the other.
Despite their small size and unassuming appearance, a Tonberry is a formidable opponent. It is very tough, and can take a lot of punishment before dying. It also seems to have an innate knowledge of its foes' combat history. While a Tonberry's foes are attacking it, it will walk slowly towards them; after every successful attack that its opponent lands, it will counter with a special ability commonly known as "Everyone's Grudge" or "Karma". This ability seems to call upon the departed spirits of every creature that the Tonberry's attacker has defeated in the past, and summon them forth for retribution. Once the Tonberry has come close enough to its enemy, it will then attack with its knife; this attack is almost always fatal.
There is evidence that Tonberries have their own civilization, although no human has ever seen it. On rare occasions, one may encounter one of the elders of Tonberry society; these are Tonberries that have lived longer or grown larger than the rest of their kind. They are known as either Master Tonberries or Tonberry Kings, and can be recognized by some form of head ornamentation. Most frequently, this takes the form of a crown or a star. As a rule, the treasures that these elders guard are even rarer and more precious, and their combat abilities are (naturally) more highly developed. The Tonberry King may be defeated and claimed as a Guardian Force (a summoned creature) in Final Fantasy VIII.