GfK Chart Track reports that Call of Duty: World at War has made it four weeks straight at the top of the All Formats All Prices video game chart, with sales across all formats now topping one million units - it took CoD4: Modern Warfare eight weeks to reach the same figure.

Activision's biggest competitor to the All Formats crown is Nintendo's Mario Kart Wii, which climbs to No.2 thanks to a sales jump of 15 per cent. All of Nintendo's Top 10 titles saw a sales jump: Brain Training up from No.5 to No.4, Wii Fit up 43 per cent and Wii Play up 5 per cent.

Elsewhere Tomb Raider: Underworld climbs one place to No.6 and Fallout 3 sees a 60 per cent rise in sales thanks to retailer promotions. Retailer promotions also gave Fable 2 a healthy 81 per cent boost. The week's biggest fallers are PES 2009 and Resistance 2, down to No.16 and No.20 respectively.

New entries include Animal Crossing: Let's Go To The City for Wii and Prince of Persia Xbox 360/PS3, although chart at a disappointing No.26 and No.30 respectively. With next to no new releases hitting stores on Friday, the battle for next week's No.1 will likely be between this week's contenders.

Leisure software charts compiled by Chart Track, (C)2001 ELSPA Ltd Entertainment Software (All Prices) Week 49, 2008

1: CALL OF DUTY: WORLD AT WAR

2: MARIO KART WII

3: FIFA 09

4: DR KAWASHIMA'S BRAIN TRAINING

5: NEED FOR SPEED: UNDERCOVER

6: TOMB RAIDER: UNDERWORLD

7: FALLOUT 3

8: WII FIT

9: WII PLAY

10: GUITAR HERO: WORLD TOUR

11: MARIO & SONIC AT THE OLYMPIC GAMES

12: LEGO BATMAN: THE VIDEOGAME

13: LEGO INDIANA JONES: ORIGINAL ADVENTURES

14: WWE SMACKDOWN VS RAW 2009

15: GEARS OF WAR 2

16: PRO EVOLUTION SOCCER 2009

17: FAR CRY 2

18: CARNIVAL: FUNFAIR GAMES

19: FABLE II

20: RESISTANCE 2