Mario's legal guardian Satoru Iwata has introduced a curious pulse-measuring device known as Wii Vitality during Nintendo's E3 press conference.

Looking for all the world like one of those machines we have on Brighton pier which tells you if you're in love by sticking your finger in it, the device is designed to go beyond a simple cardio report.

In fact, in a rather poetic description, Iwata promised that it would provide information "relating to the inner world of your body". Although probably not in a particularly medical sense.

Instead, it's aimed at aiding relaxation by monitoring stress and nervousness, even helping people to sleep.

No software was announced, but expect Mario Police Polygraph to be hitting the shelves soon.

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Dan Pearson

Dan Pearson

European Editor

A ten year veteran, Dan joined Eurogamer as a lowly admin in 2006, working his way up to senior reporter before moving over to GamesIndustry.biz in 2010. He covers all areas of the business, but has a particular passion for indies and new technologies. He spends much of the rest of his time killing dwarves in poorly constructed fortresses. His dog is brilliant.

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