Advance Wars

Unlock New 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.

Unlockable: Gold Lettering
You can get flashing gold lettering for the following categories by fulfilling certain conditions:

Field training: Get an A rank on all training missions.

Stats: Complete all 20 War Rooms - the rank doesn't matter.

War Room: Get a S rank on all 20 War Rooms.

Rank: Earn the highest rank, Gold Dragon.

Records: Get both Rank and Stats flashing, and then this will flash also.

Campaign: Complete normal and Advanced Campaign - the rank doesnt matter.

Battle Maps: Unlock and purchase every CO and buy every map.

Design Map, VS. Mode, and the Multiplayer menu cannot be turned into flashing gold letters.

Unlockable: Advance Campaign
If you're already quite good at Advance Wars and you want an extra challenge, try starting an Advance Campaign. To get it, you need to first buy the "Advance Campaign" under Battle Maps (this will become available either after completing the Campaign Mode once). Once you have bought it (it only costs a buck), start a new Campaign while holding down the Select button. The words Advance Campaign will appear in the upper left corner, the computer AI will be tougher and some of the units in the following missions will be stronger. For example, instead of regular tanks, you often face MD Tanks, your opponent has more units, and you less, and so on. But in return, you will get much more cash for winning missions.

Unlockable: Nell
To unlock Nell as a C.O. in Versus and Link Modes, beat all 20 War Room misions.

Unlockable: Olaf’s Sea Strike
All you have to do is beat Olaf’s Navy by destroying all enemy units not capturing headquarters.

Hint: Special Intel
After you have finished the Field Training missions (and in the course opened up the War Room, Campaign, Design Maps and Stats features), go back into Field Training. A very short tutorial called Special Intel is now available that gives you extra gameplay tips.

Hint: Clear Data
To erase all saved game data the easy way, turn on your Game Boy Advance and press and hold right, L and Select at the same time. Be careful that you don't accidentally delete your data, though.

Hint: Soft Reset
Press START + SELECT + B + A

Hint: Ghost Mode
Hold B during turn.