Gigar

Gigar (ギガー, Gigā), named "Perogon" (ペロゴン, Perogon) by Darlia, is a shelled animal who is situated on the lawn of the American House. Darlia, obsessed with Perogon's qualities, has taken it in as the family pet. Despite a skull mark appearing above Perogon, allowing the player to read its Animal File, it is alive and well.

In Fake Moon, Perogon appears as a monster which the hero fought per request by a young girl representing Darlia. It attacked with it's tongue and could multiply itself via illusions, where its true form would be indicated by it's shell being on fire.

Characteristics
Perogon is a blue-bodied, turtle-like creature with a white shell. Its shell is also covered with what looks like long, thin thorns. It has a menacing looking face; white eyes with no pupils, sharp white claws and a row of fangs. Always hanging outside its mouth is a long, red tongue.

Translation differences
In the original script it mentions that "Males do not have thorns" (オスにはトゲがない, "osu ni wa toge ga nai"), thus deducing that Perogon is a female Gigar. This is entirely absent in the translation for the Animal File, which also intentionally uses male pronouns whereas the Japanese script used none.

Obtaining Love
Because Perogon is found alive, the protagonist is not tasked to catch its spirit for Love.

Instead, specific events are needed to trigger in order for the protagonist to obtain Perogon's Love.

Trivia

 * The name "Perogon" is a reference to the monster, "Berogon", (localized as "Poxtongue") from Dragon Quest V. Both creatures have particularly long tongues and use them to attack.
 * This reference is even more apparent when the protagonist wears the plush Gigar that Mamas made for Darlia. Here, it is a goofy-faced, bipedal creature that more closely resembles Poxtongue's appearance.


 * On the original official website for Moon made in 1998, Perogon’s flavor text was the following: "恐ろしい姿とはウラハラに、とっても気立てのやさしい奴. 物事を見かけで判断してはならないという見本である. ", which translates to, "Contrary to the terrifying appearance, they're very kind. A prime example that you shouldn't judge a book by its cover."