All Working Advance Wars: Dual Strike Cheats - DS

Hidden map
Hold [L] and [R] when selecting Map Design mode to display a map with terrain that spells "Advance Wars".

Also, there are two groups of buildings at the bottom of the hidden map. The orange buildings make the orange star symbol, while the blue buildings make the blue moon symbol.

Bonus COs
Adder (costs 1,000 points): Win mission 26 in normal campaign mode.
Candle (costs 3,500 points): Win mission 26 in normal campaign mode.
Chakka (costs 3,500 points): Win mission 26 in normal campaign mode.
Flak (costs 1,000 points): Win mission 26 in normal campaign mode.
Grimm (costs 1,000 points): Win mission 20 in normal campaign mode.
Hachi (costs 2,000 points): Complete normal campaign mode with an overall "S" rank.
Hawke (costs 1,000 points): Win mission 26 in normal campaign mode.
Javier (costs 1,000 points): Win mission 20 in normal campaign mode.
Juggler (costs 3,000 points): Win mission 26 in normal campaign mode.
Kindle (costs 3,500 points): Win mission 26 in normal campaign mode.
Koal (costs 3,500 points): Win mission 26 in normal campaign mode.
Lash (costs 1,000 points): Win mission 26 in normal campaign mode.
Sturm (costs 5,000 points): Unlock all other COs, their color edits, and earn all 300 medals.
Nell (costs 2,000 points): Complete normal campaign mode with an overall "A" rank.
Sasha (costs 600 points): Win mission 20 in normal campaign mode .
Von Bolt: Complete hard campaign mode.
Zipo (costs 3,000 points): Win mission 26 in normal campaign mode.

Battle Map Shop bonuses
Insert either Advance Wars or Advance Wars 2: Black Hole Rising into the Game Boy Advance slot on your Nintendo DS before powering up. Once in the game, go to Hachi at the map shop. He will comment on your taste in games and will have a new wallpaper that will cost 1 credit, which may not otherwise be available in the game:

Advance Warpaper (costs 1 point): Have the Game Boy Advance game Advance Wars inserted.
Advance Warpaper 2 (costs 1 point): Have the Game Boy Advance game Advance Wars 2 inserted.
Hachi's Land map (costs 1 point): Have the Game Boy Advance game Advance Wars inserted.
Lash's Land map (costs 1 point): Have the Game Boy Advance game Advance Wars 2 inserted.
Nell's Land map (costs 1 point): Have the Game Boy Advance game Advance Wars inserted.
Strum's Land map (costs 1 point): Have the Game Boy Advance game Advance Wars 2 inserted.

Hard combat mode
Successfully complete combat mode.

Easy points
Mission four (Reclaim The Skies) in campaign mode takes only about a minute to complete, and every time will result in 300 points. After the mission, just save the game in a different file and quit campaign mode. Load the file for on mission four and repeat. Note: Make sure to save in the file marked mission five after completing mission four. Mission four gives you points towards Rachael's CO ranking. Mission two is also quick, and is good for getting points for Jake towards his CO ranking.