Gatchako

Gatchako (ガチャ子 Gachako) was a duck-shaped robot character in the Fujiko Fujio manga Doraemon and the 1973 anime. She was later scrapped from later versions and installments of the manga and anime.

Appearance
Gatchako was a female robot in the shape of a yellow duck. In the manga, Gatchako was an unattractive duck with two buck teeth on the top and bottom, much bigger eyes, and she wore a red shirt and a large pink bow that had openings. In the 1973 anime, her design was much more contrasting and cute than the manga. She wore a red dress and a pink bow on her head. She generally has a smiley appearance and has big eyes.

Background
Gatchako was depicted as an annoying female robot duck. She came as a help for Doraemon, because he wasn't doing well with Nobita. Like Doraemon, she had her secret weapons (gadgets) too, she took them from her own mouth, unlike Doraemon, that has the pocket. She was capable of put a Bomb Egg.