Need For Speed: Shift has made its debut at the top of the Xbox 360 weekly chart. Last week's number one Colin McRae: Dirt 2 falls one place down to second, while Guitar Hero 5 drops to third.

Need For Speed: Shift has retained its position as the PS3's number one title for a second week running. Batman: Arkham Asylum climbs one place to claim second, with Bethesda Softwork's Wet climbing ...