The Nintendo Wii is the fastest-selling games console of all time, with more than 50 million of them now sold.
It took Nintendo 28 months to sell 50 million Wiis, beating the old record set by Sony's PlayStation 2 by eight months.
The news was revealed at a big event for the people who make video games. And Nintendo announced some new features for the Wii at the same time.
One of the key developments will let Wii gamers use much bigger memory cards to store their saved games on.
The boss of Nintendo, Satoru Iwata, also said that the company has sold more than 100 million of its DS consoles.
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