Advance Wars Cheats

To change certain icons in the main menu screen from their original color to a flashing gold, you must complete the condition listed next to them:

Records: Complete all 20 war room maps, regardless of rank.
Rank: Obtain the final rank, rank 1.
Stats: Get both rank and records gold, and this'll turn gold too.
Field Training: Get an A-Rank in all 14 training missions.
Campaign: Complete the Advance Campaign, regardless of rank.
War Room: Get an S-Rank in all 20 war room maps.
Battle Maps: You have to unlock and buy every CO, and buy all the maps.

Design Maps, Vs. Mode, and the Multiplayer menu cannot be turned gold.

Note: The gold menus do nothing for you; they're just there for pride.