This is part of the weekly special but this offer is likely to be very popular, so I'd expect them to run out of stock by tomorrow at the latest at this price.
The game bundle includes a multiplayer game full of loads of mini games, as well as the Wiimote (which sells for around £30 on it's own) so it's great value.
The next lowest price seems to be £31, so I hope this will make up for the Haze deal I posted earlier. lol
Hope that helps. :)