Perform the task in the indicated mission to unlock bonus missions where you can get new units.
| Mission 10: Capture the city east of your HQ. | Mission 11 (black boats) |
| Mission 13: Capture the city in the northeast corner. | Mission 14 (black bombs) |
| Mission 16: Find the map in the southeastern most city on the small island with the com tower. | Mission 17 (Spiral Garden) |
| Advance Wars 1 | Advance Warpaper, Hachi's Land, and Nell's Land |
| Advance Wars 2 | Advance Warpaper 2, Lash's Land Map, and Strum's Land Map |