Gogmagog

Gogmagog (ゴグマゴグ) is the entity from Final Fantasy XIII-2. It originally comes from the Dying World, 700 AF. Due to the Time Paradoxes happening since Final Fantasy XIII's ending, it appears in random locations, similarly to Atlas.

Story
In 3 AF, While Serah, Mog and Noel make their way through in New Bodhum to the meteorite, the Gogmagog appears causing Cocoon to disappear. However, they beat the entity causing Cocoon to reappear.

In 10 AF, the much stronger Gogmagog attacks them when they try to enter ruins of Paddra in Yaschas Massif. After the hard fight, Paradox causes the Gogmagog to be sucked in the time vortex along with Serah, Mog and Noel, but Hope appear and strikes the entity with his boomerang causing Gogmagog's disappearance and party's rescue.

In 700 AF, Serah, Mog, and Noel fight the Gogmagog at its full glory in the Dying World. After defeating him for the final time, the Dying World brightens up.

Battle
Gogmagog utilizes Ruin and Ruinga spells.

Music
Three different songs play during battles against Gogmagog: "Giant Impact" in New Bodhum -003 AF-, "Worlds Collide" in Yaschas Massif -010 AF-, and "Breaking the Limits!" in Dying World -700 AF-.

Etymology
is a giant in British folklore who "was thrown off a cliff during a wrestling match with Corineus".

Trivia

 * Gogmagog resembles fal'Cie Anima from the first installment.