- "I wanted to be by your side, Eiko... so I became Mog. Don't worry. I'll always watch over you, kupo."
- —Mog, after going into Trance
Mog (モグ, Mogu?) is Eiko's pet Moogle in Final Fantasy IX. Unlike the other moogles Eiko lives with in Madain Sari, Mog has a special fur "collar" around her neck, as well as a golden pom-pom. Moguo, the Save Point moogle on the World Map, also shares this appearance.
Mog is timid, and considered a coward by the other village moogles; as a result, she often runs away even when Eiko is in trouble. The moogle accompanies Eiko wherever she goes, usually by shrinking herself to hide in Eiko's clothes. According to Eiko, she and Mog were born on the same day and had been thence inseparable. They share ribbons as a sign of their friendship, which Eiko hopes they can wear together when they are older. Due to her youth, Mog cannot communicate well with anyone except Eiko and the other moogles, speaking only in a language formed from permutations of kupo.
Mog also appears as a Tetra Master card.
Mog is first seen with Eiko in Conde Petie, as the two attempt to steal food. They flee into the Conde Petie Mountain Path, but Eiko gets stuck on a tree branch. The player party catches up with the pair, and Quina Quen immediately singles out Mog as a consumable object. While Quina chases Mog back to Madain Sari, the remaining party members help Eiko down, and together they follow Mog back to the summoners' village. Mog is later recovered at Madain Sari, Quina having turned his/her attention to fish.
Mog enters a Trance and urges Eiko to use her special ability, Terra Homing, which eliminates Zorn and Thorn. After the brief battle, Madeen tells her former charge that she will always be with her, before disappearing entirely. Mog leaves Eiko her ribbon, which Eiko can equip as an add-on to learn the summon Madeen.
Location: Memoria, Fat Chocobo in Chocobo's Paradise
The support ability Guardian Mog, is a unique ability that only Eiko may learn from a Ribbon or a Madain's Ring. With the ability equipped, Eiko is cleansed of all status ailments she may have been afflicted with during any particular battle, before the Experience and Ability Points are distributed to the party members (except for the Knocked Out status). Strangely, even though Eiko can learn the ability early in the game, it does not function until the party receives the first Ribbon item.