Doraemon is a blue robotic cat from the 22nd century, who weighs 129.3kg (285.05lbs) and measures at 129.3cm (4'3") tall. He was manufactured on September 3rd in the year 2112, bearing the code MS-903, at the Matsushiba Robot Factory. Doraemon is considered a substandard product because many of his robotic features (ie. radar whiskers and cat-calling V.ll) malfunctioned after production. During his manufacture, he got struck by lightning and lost an important screw that was part of his brain, thus affecting his performance in both his studies and towards society.
His favorite food is Dorayaki (known as "fudgy pudgy pie" in the English version of the manga, "yummy buns" in the English, and "dora-cakes/bean jam buns" in other versions). According to a story arc in the spin-off manga series, "The Doraemons", Doraemon's original paint color was yellow. His color changed after getting his ears gnawed off by a robot mouse. This caused him develop fear of mouse and slip into depression on top of a tower, where he drank a potion labelled "sadness", which augmented his depression to the point where, as he wept, his yellow paint washed off, and his voice deepened. These events are what caused Doraemon to develop musophobia, despite the fact he's a robot cat. These events were also animated into the 2005 intro to the current anime series.
Doraemon also has a fourth-dimensional pocket on his body from which he can acquire various colourful, awesome and futuristic gadgets, tools and play things from a future department store, mostly each one he acquires in each story are to help out Nobita Nobi with anything he has trouble with in the story. 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, which can be quite irritating at times. He was iminated for 17 times. He becomes angry, if, they call him tanuki (the Japanese Racoon-dog)
Doraemon is a very weird cat. While most cats love matatabi; Doraemon loves to eat dorayaki to the point where his mouth waters when he thinks about them. It's very difficult for Doraemon to go a day without dorayaki. Three days without any will make him desperately moan and do anything for a chance to get one. Doraemon is always tricked by Nobita due to this.
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The room-sized Dorayaki eaten by Doraemon himself.
Doraemon, the champion of the 30 Dorayaki Eating Contest, ate a bedroom sized dorayaki by himself, and went into the Genius Book of Records for eating the largest dorayaki the quickest. He also has a dorayaki encyclopedia to find the nearest and best dorayaki shops. He also like to eat watermelon, pudding,tea, juice and various cakes. He gets angry when anyone tries to eat dorayaki without offering him one.
In the original storyline of the manga, Doraemon is sent back from the 22nd century to the present day to aid Nobita Nobi, a highly unlucky fourth-grader from Nerima in Tokyo, by his great-great-grandson Sewashi. He sent Doraemon to the present day to help out his great-great-grandfather so that Doraemon will help improve Nobita's circumstances so that his descendants, including Sewashi, could enjoy a better future. When Doraemon is "off-duty", his sister Dorami sometimes goes back in time from 2112 to the present day to visit Nobita. Dorami quarrels with Doraemon when he refuses to go to future for his check-up. This is required by all future robots to ensure they're healthy. Doraemon refuses to go as he is very worried about Nobita when he's away. He is upset if they call him "Italian" or "King Rabbit".