Doraemon possesses a fourth-dimensional pocket from which he can acquire various kinds of futuristic tools, gadgets, and playthings from a future department store. Doraemon originally had ears but they were bitten off by a robotic mouse in the 22nd century. As a result, he developed a morbid fear of mice despite being a robotic cat. He also has the tendency to panic during emergencies, characterized by him frantically trying to pull out a very much-needed tool from his pocket, only to produce a huge assortment of unrelated household items. Doraemon's favourite food is dorayaki, a Japanese treat filled with red bean paste..
Doraemon is considered a substandard product because many of his robotic features (ie. radar whiskers and cat-calling bell) malfunctioned after production. One can turn off Doraemon by pulling his balloon tail.
In the 2007 birthday episode, 'MS-903' is used to call Doraemon by the factory owner where Doraemon is produced.
Doraemon usually uses the phrase "nanoda".
http://doraemon-doraworld.blogspot.com/2008/11/doraemon-main-characters.html
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