Game Boy Wars Advance 1+2
|Game Boy Wars Advance 1+2|
The game's Japanese boxart
|System:||Game Boy Advance|
|Japan:||CERO: "All ages"|
|Japan:||November 25, 2004|
These games were previously never released in Japan. Advance Wars was previously scheduled for release in Japan as Game Boy Wars Advance (Japanese: ゲームボーイウォーズアドバンス) on October 12, 2001, but was cancelled. 
The Japanese version of Advance Wars features a number of regional differences. Through a different pre-release screenshot of Olaf in Game Boy Wars Advance, it is evident that at least some of the revisional differences were not added after development on the game was finished.
- List of regional differences between the Japanese and North American versions of Advance Wars - The Cutting Room Floor.