First of all, please read ROM modified by you.

Please select “File” → “Save Changes As UPS Patch” in the menu.

Please specify unmodified ROM to get the difference.
FEBuilderGBA automatically recommends if there is no remodeled ROM in the current directory.
Therefore, mostly you do not have to do anything.

Press “Save modifications as a UPS patch” button to save UPS difference.

that's all.
A UPS file has been created.


It's simple.

I will explain how to adapt UPS made by you or UPS file made by others.
This is easier.

When opening ROM with FEBuilderGBA, please select ups file.

Please put an unmodified ROM to adapt the difference.
FEBuilderGBA automatically recommends if there is no remodeled ROM in the current directory.
Therefore, mostly you do not have to do anything.

Please press “Open UPS Patch” button.

If you do not erase the check of “SAVE UPS patch adapted ROM as UPS file name.gba”
The UPS patch applied contents are saved as the UPS file name. Gba in the directory where the UPS patch was located.

A patch has been applied.


It is very simple.

There are other methods.
You can open it by D & D UPS file only.

D&D UPS file to FEBuilderGBA.exe.
D&D UPS file on Welcome screen of FEBuilderGBA.

Either way, you can easily make UPS with FEBuilderGBA.