Valhalla wall Easter egg

Previously in Halo 2, if one were to change their date and clock on their console, one would find different signs for each date replacing the original "No Swimming signs" in Zanzibar. The same can be achieved in Halo 3, as Valhalla has different messages located on the Forerunner Wall.

These can be accessed simply by changing the date on your Xbox 360.

• January 1st (New Year's Day): Make Love Not War

New Year Date Egg On Valhalla

• April 22nd (Earth Day): A skull with a recycling sign.

Earth Day Date Egg On Valhalla

• May 5th (Cinco De Mayo): Toady Was Live!

Cinco De Mayo Date Egg On Valhalla

• July 4th: BBQ at Bob's Place (This is a reference to Marathon in which you kill BOBs or BOB-B-Qing)

July 4th Date Egg On Valhalla

• July 7th (Bungie Day): Seventh Column Symbol.

Bungie Day Date Egg On Valhalla

• October 31st (Halloween): A grave stone that says RIP(Rest In Peace).

Halloween Date Egg On Valhalla

• November 11th (Veteran's Day): Kilroy Was Here.

Memorial Day Date Egg On Valhalla

• December 25th (Christmas): A Christmas light with an X on it.

Christmas Date Egg On Valhalla