Why is the game called Metroid?

Why is the game called Metroid? The word “Metroid” is a portmanteau of the words “metro” and “android”. It was co-developed by Nintendo’s Research and Development 1 division and Intelligent Systems, and produced by Gunpei Yokoi.

The word “Metroid” is a portmanteau of the words “metro” and “android”. It was co-developed by Nintendo’s Research and Development 1 division and Intelligent Systems, and produced by Gunpei Yokoi.
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