The Library is a feature for Halo: Combat Evolved Anniversary, which is exclusively used in conjunction with the Xbox 360 Kinect. The feature allows players to scan selected characters, vehicles and objects in the campaign. When the command "analyze" is spoken the game enters scan mode. Items which are able to be scanned glow bright orange; items which have already been scanned glow bright blue. To scan, the player aims their reticule at an orange object and speaks the command "scan". Detailed information on these items, along with their 3D models, will then be stored in the Library. There are a total of 45 items that can be scanned.
List of items
Scan mode is actually very useful for helping players find weapons on the ground. Halo: Combat Evolved Anniversary's remastered graphics feature far more ground vegetation than the classic graphics, which has the unfortunate side effect of making it more difficult to find dropped weapons and grenades. Entering scan mode causes these items to glow brightly, making them much easier to find.
A player analyzes an Unggoy Minor.
A Scorpion tank, as displayed in the Library.
An Elite Minor, as displayed in the Library.
A Stealth Sangheili, as displayed in the Library.