The Great Gargantua

The Great Gargantua, also known as Gigi, is a shape-shifting monster that appears in the video game Goosebumps HorrorLand.

History
The Great Gargantua was held captive in HorrorLand, being used to put on shows for the "audience" attending the park within HorrorLand's Fever Swamp. However, she escapes from her cage and shrinks herself down into a little human girl.

To her horror, the Horrors notice that she has escaped and put out a bulletin in the park for the patrons to avoid her. She meets the game's protagonist and tricks them into freeing her along with their friend Nate. After escaping HorrorLand, Gigi drops her disguise, thankful to the two children who freed her and plans to turn the world into her own personal HorrorLand.

Trivia

 * Her true identity is hinted at early on in the game. The first hint is when Horrifico informs the player that the Great Gargantua has escaped. After you save her, she tells the player her name is Gigi. By comparing these two hints, Gigi can be interpreted as "GG." Therefore, GG stands for Great Gargantua.
 * Gigi generally wears a pink dress in the game, but the bulletin that informs people to stay away from her erroneously describes her as having a blue dress.
 * There is one possible explanation to correct this error: Gigi may have been spotted by Horrors in a blue dress and may have changed her clothes' color to pink to evade capture.
 * It's possible Horrors have color blindness and can't identify pink from blue.
 * In Goosebumps: The Game, there is a poster for a lost dog named Gigi hung on a tree in the woods. This could be a possible reference to the Great Gargantua, considering her shape-shifting abilities.

Appearances

 * Goosebumps HorrorLand (video game)
 * Goosebumps: The Game