Step 1: Select the Kinect Sensor shown below by ticking the box to the left of it.
Step 2: Now you can add Kinect Joy Ride for free. The price of the selected game will be reduced at checkout.
(Step 3: Add any of the other listed Kinect compatible titles for £20. The price of the selected game will be reduced at checkout. £20 game terms and conditions.)
Step 4: Click the "Add to Basket" button on the right of the page to add all your selected items to your basket.
Step 5: Enter code "GOKINECT" at checkout to get £10 off the Kinect sensor.
EDIT: (thanks to CTUK)
step 3 - extra game for £20 can be swapped for 12 months gold or dead space 2
- Kinect sensor with adventures
- Kinect Joy Ride
+ 12 months gold or dead space 2