Warsong

Note: This game is also titled Langrisser.

Level select:
Press A during game play to zoom out the map. Move the cursor to the upper left corner of the screen, then move it one space right and one space down. Hold B until a number that represents the scenario is displayed. Press Up or Down to select a level. Game play will begin with the commanders present when the code was entered.

Sound test:
During game play, move the cursor to the upper left corner of the screen, then move it one space right and one space down. Hold B until a number that represents a sound displayed. Press Up or Down to change sounds.

All items:
In the Japanese, version, hold Up/Left + A + B for about twelve seconds at the solider purchasing screen. You will lose all your money and the music will change, but you will get all the items, except for the Warsong. However, you will get the Dragon Slayer (+5 Attack and +3 Defense).
Information in this section was contributed by BeatYouVerbally.

Hint: Easy experience:
When Mina is in your team, use the "Level select" code to go back to where Mina is about to join (Slime surround stage 4). Mina will replace a character. Have her defend and kill the slimes, but only to level 9. When reinforcements arrive (in this case "Mina 2"), have the Mina in your team start killing and level up. You will see "Mina 2" level up (max out to next class). Other characters such as Bayard can also do this.
Information in this section was contributed by MAX KUAH.

Hint: Destroy walls:
Crack and destroy walls using Earthq... spell restore using the zoom in and zoom out option.
Information in this section was contributed by MAX KUAH.