Chu-Chu

Chu-Chu is a playable character in Xenogears.

Appearance and Personality
Chu-Chu has a similar appearance to all other chu-chus, being a small rodent-like animal with 2 fur colors, in this case pink and white, with large ears, large black eyes with small white pupils, and some amount of clothing. Although she is only 1 year old, because of certain lines in the game such as her stating that she's "at that dangerous age," it can be inferred that she is adolescent in terms of her species.

Chu-Chu is an archetypal mascot character, primarily having traits that are meant to be seen as cute or quirky, such as replacing various words and parts of words with "chu." However, she avoids acting childish like many mascot characters do, instead being quite horny, specifically pursuing Fei during most of her time on screen. Because of this more exaggerated personality and attempts at humor that make many uncomfortable, Chu-Chu has become an infamous and oft hated character by fans. Despite it seeming like she is shallow though, it is implied that she honestly cares for the rest of the main cast of Xenogears, at one point even jumping in herself to help in a fight.

Story arc
Chu-Chu is first seen when rescuing Margie from the palace in Bledavik, where Margie says that Chu-Chu is a stuffed-animal that she is rather fond of and asks to take it with her. After the escape, when talking to Margie, Chu-Chu will come to life. It is here where the game allows you to name Chu-Chu for yourself, though it will automatically be filled in as Chu-Chu. It is here where Chu-Chu first declares her love for Fei.

For most of the story Chu-Chu will rarely, if ever, show up unless the player specifically talks to her in Margie's room on the Yggdrasil, where she will offer little dialogue of note. However, during the invasion of Shevat by Solaris, while the party is fighting the gears at the defense towers and Achtzehn is attcking the city proper, Chu-Chu jumps in to combat Achtzehn while Maria is not yet in Seibzehn. It is here where Chu-Chu first enters her giant form, the form she uses for Gear combat, and gets into a solo boss fight against Achtzehn, eventually buying time for Maria to get in Seibzehn to fight it off. It is after this point that Chu-Chu first becomes a party member, despite having traveled with the party for most of the game.

Lore

 * Chu-Chu initially lived in Shevat, like all chu-chus, but was eventually taken by Wiseman into Bledavik where she pretended to be a stuffed animal before eventually being bought by Margie.
 * Chu-Chu is the only character to engage in gear combat without a gear, instead doing it in her giant form.