Batman: Arkham Asylum debuts at number 1 on the UK’s All Formats Software Sales Chart, becoming Eidos’ biggest All Formats number 1 since ‘Who Wants to be a Millionaire’ in 2000 and beating out Tomb Raider: Legend and Tomb Raider: The Angel of Darkness.

The Xbox 360 version of Batman’s latest adventures just pipped the PS3 version, with the former claiming 55% of the sales and the latter 45%. Watch this space to see how the PC version fairs when it hits shelves in a couple of weeks.

Wii Sports Resort slips one place to number 2 while Ashes Cricket 2009 sticks it out in third. Wolfenstein drops two spots to number 4 with Wii Fit keeping up the pace at number 5.

Call of Duty: World at War follows in sixth with Mario Kart Wii burning rubber at number 7. Tiger Woods PGA Tour 10 holds on to the number 8 spot while Lego Batman: The Videogame re-enters the Top 10 at number 9 and Call of Duty 4: Modern Warfare finishes at number 10.

Call of Juarez: Bound in Blood, Fight Night Round 4 and Prototype all fall out of the Top 10 this week while Fallout 3: Game Add-on Pack 2 enters the charts at number 20.

The All Formats UK Software Chart Top Ten follows below:

• Batman: Arkham Asylum (Eidos)
• Wii Sports Resort (Nintendo)
• Ashes Cricket 2009 (Codemasters)
• Wolfenstein (Activision Blizzard)
• Wii Fit (Nintendo)
• Call of Duty: World at War (Activision Blizzard)
• Mario Kart Wii (Nintendo)
• Tiger Woods PGA Tour 10 (EA)
• Lego Batman: The Videogame
• Call of Duty 4: Modern Warfare

Source: Chart Track