You might be disappointed if you're hoping that you'll get a Nintendo Wii for Christmas.
Shops are struggling to keep up with the demand for the snazzy device, which is movement controlled.
The makers, Nintendo, said it was "doing everything possible" to keep up with demand. It's made an extra 3.5m consoles globally for Christmas.
Special websites have even been set up to help shoppers locate the Wii, which has been in short supply for months.
But Nintendo say that not everyone who wants a Wii is guaranteed a Wii this Christmas.
"The demand for Wii hardware globally has been unprecedented and higher than Nintendo could ever have anticipated," said a spokeswoman.
Because of the demand for the games console, some shops are selling it for about £300, when it's normally about £180.