Breath of Fire 4 (PS1) ROM Editor by: Tony H
Version 2.1   5/30/2025
For Windows   (written in C#)
Send bug reports or comments to: t_hedstrom@yahoo.com

My site, with other editors, programs, Game Genie codes, etc...
https://codehut.gshi.org/
http://www.angelfire.com/games2/codehut/

Version 1.0 = Initial public release. 10/22/2023
Version 1.1 = Added editing for weapons and armor.  10/27/2023
Version 1.2 = Added editing for Masters.  11/2/2023
Version 1.3 = Added editing for Dragons, fixed bug.  11/6/2023
Version 1.4 = Added shop editing.  11/10/2023
Version 1.5 = Added spells learned editing.  11/16/2023
Version 1.6 = Added editing for fishing.  11/22/2023
Version 1.7 = Added Manillo shop editing.  11/26/2023
Version 1.8 = Added editing for Magic.  11/29/2023
Version 1.9 = Added Dragon stat boost editing.  12/1/2023
Version 1.9a = Fixed bug when patching enemy stats.  8/23/2024
Version 2.0 = Added Accessory editing.  10/6/2024
Version 2.1 = Added lots of new editing, bug/typo fixes, etc  5/30/2025


Version 2.1 update:
Can now edit Item stats in the "Weapons/Armor/Accessories/Items" page.  Fixed a couple bugs/typos in the Magic page: #198 - Frost Breath was mislabeled, #226 - CoveringFire was also mislabeled.  You can now edit both of those magic spells.  Added weapon element editing.  Increased the maximum allowed values for weapon, armor, and accessory Pwr and weight (maximum allowed Pwr value was increased from 250 to 999, and maximum allowed Weight value was increased from 99 to 255).  Added more Master editing including letting you get items besides skills from them (items, weapons, armor, etc) as well as milestone editing.  Have also updated the "BoF4 Fish Stat Info.txt" file since I found through testing that some of the info was off.

Version 2.0 update:
Added editing for all accessories in the "Weapons/Armor/Accessories" page.  The accessories are listed in the Armor section starting at number 070.  You can edit defense power, weight, cost, and who can equip.  Accessories include: Defensive gear, boots, rings, fishing rods, fishing bait, etc.

Version 1.9a update:
Fixed a bug where anytime you edited an enemy's stats, their description was changed to the one that Mage Goo uses.

Version 1.9 update:
Added a new section in the "Dragon" page where you can edit dragon stat and resistance boosts.

Version 1.8 update:
Added a new page for magic spells where you can edit how strong many of the spells are, as well as how much AP it will cost.

Version 1.7 update:
Can now edit both types of shops within the Manillo shops.  Also added a new button in the "Fishing" page that lets you view the fish stats hacking guide (also included in this zip file).

Version 1.6 update:
Have added a new fishing page that lets you edit what kind of fish you can catch in the different fishing locations, and how many fish you can catch there. Can also edit how many points are needed for each of the fishing ranks.  Have also included a hacking guide for fish stats (Length for max point bonus, bonus points, bait that the fish likes/dislikes, and Strength/Stamina).

Version 1.5 update:
You can now edit what spells characters learn as they level up.

Version 1.4 update:
Can now edit what's for sale in all regular and faerie shops, and can have up to 15 items for sale (shops normally have a maximum of 8 items).  Can add any Item, Weapon, Armor, or Accessory to any shop, including unused items.  Also made "Bad ending" boss patching much faster.

Version 1.3 update:
Added editing for Dragons, including Abilities and game points needed to evolve dragons or upgrade Mutant Breath ability.  Also fixed a bug from version 1.2 where the Master Skills learned only got patched in 1 location in the ROM, when it should have been patched in 12 different locations.

Version 1.2 update:
Added editing for Masters, including Master stat boosts and Skills learned.

Version 1.1 update:
Added editing for weapons and armor, fixed incorrect boss name in "Bad ending" section.


This program lets you edit lots of stuff in your Breath of Fire 4 game, and you can then patch the changes into your ROM.

Will work on PS1 (PlayStation 1) USA or European ROMs (SLUS-01324 or SLES-03552).  It may also work on some hacked or modded versions that use the USA or European ROMs.  Since I couldn't find any ".ISO" versions of this game, it has only been tested with ".bin" type files.

Special thanks to navarchos from RHDN for supplying me with lots of useful technical info for this game.  Also like to thank the really helpful people on the RHDN BoF4 forums for giving me tons of help with details for this game, since I had never played it before.

IMPORTANT:
If you're using this editor with a previously saved game, make sure it's an "in-game" save file, and NOT an emulator save state.  A pre-existing emulator save state will often not show any changes you patched into your ROM, but a previously saved game that uses an "in-game" save file will almost always work.

IMPORTANT:
If you're using the Bizhawk emulator, someone informed me that Bizhawk can make it so any changes made with the editor won't work, even when starting a new game.  If you're using Bizhawk and having problems getting changes to work, you may want to try a different emulator.

When patching, you can decide if you want it to create a new ROM or not.  If you do make a new ROM, the program will automatically add "Patched" to the end of your file name, which makes it easy to remember which file was patched, although you can name the new file anything you want as long as it's not the same as the original file name.  This keeps your original ROM safe.

There are some Help/info buttons in the editor that should answer any questions.

Shouldn't need any additional files if you're using Windows (uses the .net framework).

Can read more about the program here: https://www.romhacking.net/forum/index.php?topic=37817.0
