Chu-Chu is a character in the game Xenogears.
The only character without a Gear, Chu-Chu can grow to humongous size during battles. Attacking enemies by stomping on them for serious damage, Chu-Chu's lack of a Gear is trivial. Most of its body assaults enemies, depending on the attack chosen. Although fairly weak initially, Chu-Chu is accepted by the party because she is Marguerite's pet.