Advance Wars/Controls

When in mode select menu, press the button to select one of the modes.

Use in the mode select menu to go back a level or to the title screen. In game mode, use it to go out of a menu or to say no to something when someone asks you.

Modes
Press to continue a campaign or to start a new one. If you have bought the advance campaign from Hachi, then hold down and press New campaign.
 * Campaign

Will automatically start the game you are in the middle of. If you are not in the middle of a war room, then it will have one option: New. Press to start.
 * War room

Here is where you can buy maps and ../COs/ once you unlock them. Use and press  multiple times until you have bought it.
 * Battle Maps

Will always have two options: Select which one you want, then press.
 * Versus Mode
 * 1) New
 * 2) Continue

Use to select which training you want to do. It will show your highest rank on the side.
 * Field Training