Mass Effect 2 has warped to the top of Chart-Track's UK sales chart, revealing that Britain isn't just about Just Dance (which still stepped its way into second place, by the way). Comparing debut weeks, the Normandy crew's second outing sold twice as well on Xbox 360 than the original did back in 2007 and three times higher on PC. EA is expecting a good financial return from Mass Effect 2, having already shipped 2 million copies. Taking the bronze this week on the all-formats chart is Call of Duty: Modern Warfare 2, and in fourth is ... MAG. Yes, coverage of the PS3-exclusive may have been totally eclipsed by BioWare's space opera, but it still managed a strong debut -- have a look at our review to see if it's worth the attention. The rest of the list features the usual suspects, though Dragon Age: Origins has made a return to the top 40. It seems Mass Effect 2 wasn't the only BioWare game casting a spell over consumers last week. Source - Mass Effect 2 gravitates to No1 [GFK Chart-Track] Source - Latest UK Software Charts [GFK Chart-Track]