Users with 3D capable Nvidia graphics cards may be unable to disable 3D Vision by unplugging the 3D adapter, or using the Nvidia Control Panel. This issue can be resolved by pressing Ctrl+T in-game.
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Warner Bros. Interactive Entertainment\LEGOBatman2
A number of users have reported issues with the PC version of the game, whereby the anti-virus program AVG detects the dangerous Win32/Heur virus mid-installation. This is a known false-positive, and AVG are aware of the issue. Users of AVG can safely ignore the warning presented in this case.