XBox 360 Advert
Go to Sky1 (106) press red, press A-Z press 9 select XBox 360, when the advert is showing press 344, that’s level 1 of the hidden game…. Have fun 
Possibly Related : XBox 360 the Advert (part 2) The XBox 360 Marketing machine start’s to ramp up Gaming Stuff XBox 360 Hack
