In order to celebrate Christmas and the traffic chaos that inevitably accompanies the festive season, indie developer Green Light Projects are pleased to announce a number of additions to their popular traffic-based puzzle game 'Carcophony'.

In response to requests from players around the world, it is now possible for cars to drive on the right (wrong!) side of the road, via a special unlock code available on the GLPeas website. In the run-up to Christmas, more codes will be released allowing players to unlock new and exciting features - rumours of a special 'M25' mode where no traffic moves at all, have yet to be denied.

Released in October 2009 through the Xbox Live Indie Games marketplace, Carcophony has built up a dedicated fanbase of players who enjoy the surprising depth and high production values that reviewers have praised so highly.

Carcophony is available from the Xbox Indie Games Marketplace for the price of 400 Microsoft Points.