> The fish in question belong to a YouTuber known as Mutekimaru, whose channel is popular with the gaming community for its videos featuring groups of tetra fish that “play” video games.

Mutekimaru had previously installed sophisticated motion detection tracking software in fish tanks, enabling the fish to remotely control a Nintendo Switch console.

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During the next seven hours, the fish reportedly managed to change the name of their owner’s Switch account before twice logging into the Nintendo store, where users can purchase games and other downloadable content.