Doraemon is a robotic cat who travels back in time from the 22nd century to help a boy named Nobita Nobi. He has a four-dimensional pocket on his belly that contains many futuristic gadgets, such as the Bamboo Copter, the Anywhere Door, and the Time Machine. He is kind, loyal, and brave, but also afraid of mice and loves dorayaki (a type of Japanese pastry). He is the main character of a popular Japanese manga and anime series created by Fujiko F. Fujio.

As for why Doraemon is not a global phenomenon, I can only conjecture based on some possible factors:

Doraemon is deeply rooted in Japanese culture and history, which may make it less accessible or appealing to some audiences outside Japan. For example, some of the gadgets, jokes, references, and values may be unfamiliar or confusing to non-Japanese viewers.
Doraemon has faced some challenges in localization and distribution in different regions and languages. For example, some of the names, terms, and expressions have been changed or censored to suit local sensitivities or preferences, which may alter the original meaning or humor of the series. Also, some of the media platforms or channels that broadcast or stream Doraemon may have limited availability or reach in certain countries or markets.
Doraemon has a lot of competition from other popular media franchises that may have more global appeal or recognition. For example, some of the Disney, Marvel, Pixar, or Star Wars properties may have more diverse or relatable characters, stories, themes, or genres than Doraemon. Also, some of the other anime or manga series may have more action, drama, romance, or fantasy elements than Doraemon.
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