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Mother 1+2

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Title Screen

Mother 1+2

Developer: Pax Softnica
Publisher: Nintendo
Platform: Game Boy Advance
Released in JP: June 20, 2003

GraphicsIcon.png This game has unused graphics.
MusicIcon.png This game has unused music.
DebugIcon.png This game has debugging material.

Mother 1+2 is a port of Mother and Mother 2 to the Game Boy Advance. While 2 got a few bug fixes (as well as inferior audio, which is inevitable with any SNES-to-GBA port), 1 had a whole slew of improvements, many of which came from its then-unreleased English version.

To do:
  • Since the two games seem to be near-direct ports of their console counterparts, some of their other unused content could be lurking around as well.
  • There's other unused jingles.
  • Document the debug menu.

Unused Graphics

To do:
Post comparison with used graphics.

Mother 1+2 English SelectionGFX.png

0x6F57B4 contains a version of the game selection screen with English text for the prompts.

Unused Music

Mother 2

The remixed Mother cave theme is still present and still unused.

Mother 2 Debug Mode

Please elaborate.
Having more detail is always a good thing.
Specifically: What do the options do?

The easiest way to access the debug menu is by changing the data at ROM offset 0x1F0-0x1F3 from A5 37 01 08 to 55 7A 00 08. Doing this will auto-boot the game to the debug menu. Press Up/Down to select an option, A to go into that option, and B to go back to the previous option. Here's a list of the menu options translated:


Map Select 1, as follows:

  • オネット - Onett
  • ツーソン - Twoson
  • DG谷 - DG Valley, referring to Grateful Dead Valley (Peaceful Rest Valley in English versions)
  • ハッピー - Happy, referring to Happy Happy Village
  • スリーク - Threek (Threed in English versions)
  • ウィンターズ - Winters
  • グレープ - Grape, referring to Grapefruit Falls
  • サターンバレー - Saturn Valley


Map Select 2, as follows:

  • ドコドコ砂漠 - Dusty Dunes Desert
  • フォーサイド - Fourside
  • FO地下倉庫から - FO Underground Warehouse (the back room of Jackie's Bar/Café in Fourside)
  • サマーズ - Summers
  • サマーズ海上 - Summers Sea (when you're going to Scaraba)
  • ランマ - Dalaam
  • スカラビ - Scarabi (Scaraba in English versions)
  • ダンジョン男 - Dungeon Man


This option was used to check character sprites. Selecting this spawns Ness in his house at night, No objects and NPCs are present. Pressing Select will change the character sprite. The game checks for these characters to be loaded:

Teddy Bear
Flying Men
Bubble Monkey

Pressing R will show an animation for the chosen character. Pressing L will show the previous animation shown.