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First sonar enabled peripheral for a gaming console

First sonar enabled peripheral for a gaming console
Who
Gyogun Tanchiki: Pocket Sonar
When
1998
An unusual console peripheral was Gyogun Tanchiki: Pocket Sonar. Released in 1998, it allowed Game Boy owners who also enjoyed fishing to use their handheld console as a sonar device to detect fish under water. Guinness World Records Gamers' Edition 2009.