Sci-fi shooter Mass Effect 2 has topped the UK all-format games chart for the second week running.

The highly-acclaimed EA Games title has once again kept Just Dance for the Nintendo Wii off the top spot.

The epic Mass Effect 2 merges the character-driven plotlines of an RPG with the action and intensity of a first-person-shooter and is available on Xbox 360 and PC.

Call of Duty: Modern Warfare 2 retains the number three position in its thirteenth week in the charts.

This week’s highest new-entry was Dante’s Inferno for Xbox 360 and PlayStation 3, an action-adventure loosely based around Dante Alighieri’s epic poem, The Divine Comedy.

The best-selling PC-only game was Star Trek Online, a new-entry from Atari in at number 11.