If you know what you’re doing or simply are curious, you can also create an ISO from the changed source files. However, creating it from a patch is recommended, as it is far easier and faster.
Original article written by: RoyalSyrup. It has since been modified
Step 1: Download the tools for altering the ISO
So the first thing we need is our tools for making a Melee: SD Remix ISO.
GC Tools: https://wiki.gbatemp.net/wiki/GC-Tool
GC Rebuilder: http://www.romhacking.net/utilities/619/
We’ll also need the the newest revision for ISO/DVD, you can download that here. Make sure you download the ISO/DVD version.
Step 2: Obtain (preferably legally) a copy of SSBM NTSC
NTSC just means it should be a version of Super Smash Brothers Melee released in in the NTSC region of the world. This is a fancy way of saying “released in the USA”. Google-ing is one way, but if you have a Wii with the Homebrew Channel, you can rip your personally copy of Melee that you have on a physical disc onto an SD Card or USB Storage device. To rip your own ISO of Melee from your physical copy, see Ripping an ISO from your Physical Melee Disc.
Step 3: Extracting and altering the ISO
Start up Gc-tool.exe. It will look something like this:
Go to File -> Open GC-iso. Locate your ISO from step 2 and click open it. Note: If you can’t find your ISO, try selecting all files where it says File Types.
The window should now look something like this:
Go to ISO -> “Extract Whole ISO…”. A window like this should pop up:
Click on “Choose Dir” and select a folder on your hard drive to extract all the SSBM files to. After that, make sure “Also Extract Header, Apploader, DOL and TOC” is selected. Then, click “Extract”. It will start to extract the ISO to the directory you chose, and it might take a while. Once that is done, click Exit to go back to GC-Tool. Now close GC-Tool. In the directory you selected, you should now have a “root” folder. This contains every file in the Melee ISO.
Now, go to the zip file with the SD Remix files (the ISO/DVD version you downloaded). In the zip file, you will see a folder starting with “[ISO] SDR_”. Inside of THAT folder, you’ll see a “root” folder. Copy this folder to the directory that you extracted you SSBM iso to, which also has “root” folder. If it asks you to confirm a file or folder replacement, either say “Yes” or select “Copy and Replace”, depending on your operating system.
Step 4: Rebuilding the ISO
Start up gcr.exe (it may also have the version number there, so it might be called “gcr_v1.0.exe” or something similar). It should look like this:
Go to Root -> Open. Now go to the “root” folder that holds all of your Melee files. Click on the folder, then click “OK”. The window should be populated with all sorts of data. You should also see a custom SD Remix banner and SD Remix data on the left side. If you see the normal Melee banner and data, you may not have overwritten the files to the right place.
Now, go to Root -> Save, and choose your directory and name your ISO, then click OK. Then go to Root -> Rebuild. It will now start rebuilding the ISO. After it’s done rebuilding, you should have an ISO where ever you put it. And now your done!
You now have an ISO of SD Remix! Congratulations!