We've wiled away many an hour on an online multiplayer version of the classic Tron light cycle game. And hey, here's a Flash version! For those that don't know the game action takes place on a square grid. Your light cycle (and that of your opponent) can only follow the grid in straight lines but can turn a right angle instantly. Cycles leave light trails with which you must try to ensnare your opponent - contact with these or with walls is fatal so think - and turn - fast!