Advanced Mode
First you have to beat the original campaign. Then you can buy the advanced campaign.

New Play Modes
After beating all the field training missions, you unlock the War Room, Campaign, Design Maps, and Stats options.

Hard Mode
Hold select when choosing Campaign mode to play advanced mode.

New C.O.s
After beating the Campaign mode, you can purchase additional CO's.

Clear Data:
Hold L + Left directional button + Select while turning the GBA on.

In-Game Reset:
Press Start + Select + B + A while playing.

glitch and other things
New Play Modes:
After beating all the field training missions, you unlock the War Room, Campaign, Design Maps, and Stats options

kill opponents faster:
will shootin hold a and the d-pad

stop opponents building troops:
place a troop of your own on your opponents building

Have War Room flash gold
Win all levels with a special rank and a score above 500 points.

Easy money
If you defeat a country's factory but do not have the money to buy any COs or maps, just restart the campaign. None of your early COs or maps will be gone. You can replay the campaign and do all the easy missions and get about 300 points every time then easily buy the COs and maps.

Stop enemy from building
Place a medium tank or any other troop type on an enemy building.

Load more units to transporter ships
Deploy an APC and load a unit inside it. Next, load the APC to a Lander. You can also deploy T-Copter and load a unit to it. Then, load the T-Copter to a Cruiser.

Search fog of war maps for troops without wasting moves
To see if an area covered by fog of war has troops in it, move your troops over that area. However, instead of telling them to wait after moving, press [B] to go back and search another area. If nothing happens, the space is empty. If occupied, your unit will be forced to wait. Note: This uses a lot of fuel.

Select who you want for the final battle
During campaign mode, do what you have to do to buy a C.O. For example, to play as Grit do mission 4 as Max. If you want to play as Max and Sami, do not complete the requirements to unlock a C.O.

Final battle
One of the best teams is Max and Eagle. To get them, use Andy in Max Strikes and Sami for all four Green Earth missions. To defeat Sturm, move Andy in a defensive position where he is located. Move Eagle's forces over the mountains behind Andy. Move Max's forces north. Make sure that Max takes the first Meteor Strike. After you have destroyed Sturm's initial force, push up into Sturm's area and beat him up.

Advance Wars

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Get Olaf

Beat Campaign Mode And Buy Olaf from Hachi for 50 coins.

How to get 2nd CO

Simply get past level 3.

Advanced Difficulty

Simply hold select before you begin campaign mode and you will be in Advanced Mode.  There will be stronger enemies but you will earn more coins for each battle won!

Unlocking The Secret Mission and COs

To unlock to secret mission, "Rivals", use Sami as your CO for the missions "Captain Drake", "Naval Clash", "Wings of Victory", and "Battle Mystery".


After you finish the campain mode, you can go through it again on a harder difficulty level. On the second time through, you can earn other COs.

Kanbei: Automatic to get him
Drake: Use Andy for "Captain Drake", "Naval Clash", "Wings of Victory", and "Battle Mystery".
Grit: Use Max for "Max Strikes".
Sonja: Win all VS Sonja missions.
Eagle: Win the "Rivals" (note: other than Sturm this is the hardest to get.).
Sturm:Get all of the COs!!! (Now thats hard!)


I just need to get Sonja and Eagle to get Sturm, take it from me, its very difficult!

How to get Sonja

To get Sonja you need to do three things.One you have to beat "Kanbei Arrives" in 8 or less days.Then beat "Mighty Kanbei" in 10 or less days. Next beat "Kanbei's Error" in 12 or less days. Then you go to 3 missons.You v.s Sonja in all 3. You must beat each one using a different CO. 1st one is max,nex is Sami, and last is Andy. Also if you do this, Kanbei will be a CO in "Final Battle".  

Weakness'

This is how to beat enemies with your characters easily:

Olaf-use Andy
Eagle-use Sami/Drake
Sonja-use kanbei
Kanbei-use Kanbei
Max-use Grit
Grit-use max
Drake-use Eagle

Unlock Nell

Get S rank on All missions in ADVANCE CAMPAIGN. Buy Nell for 80 coins

Getting eagle

message: first unlock the level rivals.
heres how to get eagle and beat it:

DAY 1
build two transporters and move a mech in them.there should be a infantry left and don't move it.

DAY 2
move each transporter 3 spaces forward.
that is it!
there's two goals:
1.captue the airport in the middle.
2.capture the HQ.

DAY 3
he built a bomer,what a waste of money!
your concern is to build all air units.
ignore the bomer and dont bother it.
build a fighter and don't move transporters without 2 fighters and 1 b-copter at least.

DAY 4...
and from here you dont need to protect your HQ,because he makes no attempt to capture it,so dont build bomers, keep building fighters and b-copters to protect your
transporters and slowly move them to the airport.drop the mechs when the bomer is out of range.then attack the unit he built on the airport, move somthing on that so its impossible for him to build somthig,capture it, from there use the airport to build more fighters and load the transporters with the mechs and head for the airport.

Way to get all COs except drake on 1campaign and beat Sturm Level easy!!

The first trick here is when you first get Max, chhose him.  Now you already have Grit when you beat the campaign mode.  Then when you have to vs. Kanbei, you have to beat the first one of his in 8 days(use Max), 2nd- 10 days(use Andy), and third-12 days(use Sami).  Then you get the Sonja missions, beat them and you unlock Sonja.  When you get to vs. Drake, chhoose Sami for the next 4 missions, this will unlock the Rivals mission and Eagle.  When you get to Sturm the first time, choose Max.  Now everything is set up great.  Instead of having Andy Max and Sami as your COs on the Sturm mission, you have Andy, Grit and Eagle!  Now this is how you beat that easy.

Unlock Other COs

Beating the regular campaign will unlock Olaf as a playable CO in Vs. and Link Mode, but you can also get some of the other COs as well. The only problem is that you have to pay for them and certain conditions have to be met to unlock them. Check the Battle Maps room after you beat the Campaign mode -- and Hachi will offer COs for sale (for 50 coins, so save up). Here are the conditions that have to be met to unlock certain COs:

Olaf: Unlocked after beating Campaign Mode
Grit: Beat Campaign Mode and use Max in Mission 4. Buy from Hachi for 50 coins.
Eagle: Beat Campaign Mode and use Sami for missions 15, 16, 17, 18, then beat secret mission 22. Buy from Hachi for 50 coins.
Kanbei: Beat Campaign Mode. Buy from Hachi for 50 coins.
Drake: Beat Campaign Mode. Use Andy for missions 15, 16, 17, and 18. Buy from Hachi for 50 coins.
Sonja: Beat Campaign Mode. Beat Mission 9 in 8 days (or less), Mission 10 in 10 days, Mission 11 in 12 days, then beat the secret missions 12, 13, and 14. You can then buy Sonja from Hachi for 50 coins.
Sturm: Beat Campaign Mode and unlock all other COs. You can then buy Sturm from Hachi.

Get Sonjas Serect Missions 

In Campaian mode once you get to yellow comet territory and face Kanbei's Imperial forces you have to beat each mission in a certain time limit. The first mission you have to beat in 9 days, the second mission in 10 days, and the third mission in 11 days. I find the easiest way to do this is to use the co Max for the first mission, Andy for the second mission, and Sami for the third mission (good luck). 

Get 999 points on first level in War Room

1. use Max his power is very usefull.
2. try to capture all the cities at the bottom of the screen with only 4 infantry units.
3. From then on build tanks.
4. Around the 8th day (if your on track) Olaf should do his snow attack.
5. Focus on attacking, do not try to capture his base.
6. To get 999 points, you must beat him in 10 days and only loss  1 unit tank or infantry.
 P.S. I tried all the other COs and they do not work.I've only done it twice, I always get it in 11 days. GOOD LUCK!