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WonderSwan Color FF4 Debug Menu

Started by Everything, December 27, 2021, 11:07:15 PM

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Everything

I found a debug menu in the WonderSwan Color version of FF4. I think it's pretty interesting, so I'm sharing what I found in case anyone else wants to play around with it. I'm not sure if anyone has looked into this before. It's mentioned on this tcrf page, but only because some of the text was copied over into the GBA version. From what I can tell, the code for this menu was not included in the GBA version.

You can access the debug menu by applying this IPS Patch to a WonderSwan Color FF4 ROM (CRC: 0xF699D6D1). After applying the patch, you can open the debug menu by suspending your game (choose ちゅうだん and then はい in the main menu). Most of the menu text is in Japanese, so it might be difficult to navigate. Here are the top menu options translated to English (please correct me if I translated something incorrectly). Note that a few of the options will wipe your SRAM and/or cause the game to lock up.


  • マップ (Map): press left or right to select a map (the initial choice デバッグ is a debug room which can also be found in the GBA version), press A to go to the map's default entrance, or press B to choose specific coordinates
  • エフェクト (Effect): I think this was used to test battle animations, but it doesn't seem to work
  • バトル (Battle): test any battle, but the game will crash if you win
  • ショップ (Shop): opens any shop, but the game will crash when you exit
  • てきひょうじ (Enemy Display): display enemy graphics
  • キャラクタひょうじ (Character Display): display map character graphics
  • イベント (Event): jump to various stages of the game
  • サウンド (Sound): play any sound effect or song
  • フラグ (Flag): change game flags
  • さいかい (Resume): resume suspended game (doesn't work)
  • スイッチ (Switch): seems to let you enable some built-in cheat codes, not sure if they work
  • ステータス (Status): view and edit character status, including a "class change" option
  • SRAMはかい (Delete SRAM): self-explanatory

Debug Menu:


Character Display:


Flag Edit:


Character Status:

Gedankenschild

Very interesting! Thanks for this contribution (that I completely missed till now).
Would have been helpful to have back when I was ripping all the enemies from this version...
Do you have an idea what kind of compression they used for the graphics that can't be easily seen with tile editors?
And do you plan on including the WSC version in FF6Tools?