Downloads
You need at least one of following: (Only One)
SFC3 CD-ROM
SFC3 CD-ROM version already installed in computer
SFC3 GoG version already installed in computer
Run SFC3REX.exe.
The Setup first will ask you to select SFC3 folder. It should detect your SFC3 installed in computer, or you can enter the path to CD-ROM's data folder, e.g. E:\Setup\Data\.
It will ask a second destination folder. This is the folder which the mod will install to. Do not install in your SFC3 folder! Choose a new folder here.
The setup will continue to install mod to the new folder. It will create a shortcut in Desktop so you can play the game.