War. What is it good for? Super successful games! Call of Duty: Modern Warfare 2 may be undergoing a gradual sales slide, dropping another 11 percent this past week, but since the title has maintained the top position on the UK sales chart for a fifth week, it must be sliding down on a pretty fluffy cushion. Call of Duty: World at War held the high ground for five weeks last year before FIFA took it during Christmas week. Speaking of FIFA, the latest installment dropped from second to fifth this week.

Assassin's Creed 2 couldn't find the next grip location and holds its position in third. Nintendo has Wii Sports Resort, Wii Fit Plus and New Super Mario Bros. Wii at spots two, four and six, respectively. As for premieres, The Legend of Zelda: Spirit Tracks rolled in at 12th place and James Cameron's Avatar: The Game entered at number 29. Now let's see how Avatar: The Movie That Inspired The Game does. If it's a hit, that should help sales of the game.

Source -- Modern Warfare 2 Claims 5th Week at No1 [Chart Track]
Source -- All formats chart [Chart Track]

This article was originally published on Joystiq.

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