How to apply a .IPS or .UPS patch

How to apply a .UPS Patch (NUPS Patcher)   | Guide written by Lunos on September 16, 2017.
How to apply a .IPS Patch (Lunar IPS)      | Guide written by Lunos on January 31, 2018.
How to apply a .UPS Patch (ROM Patcher JS) | Guide written by Lunos on January 23, 2020.

-Useful Links-
NUPS Patcher: https://www.romhacking.net/utilities/606/
Lunar IPS: https://fusoya.eludevisibility.org/lips/download/lips102.zip
ROM Patcher JS: https://www.marcrobledo.com/RomPatcher.js/

| - Applying a .IPS Patch - |
Once you have Lunar IPS, a Clean version of whatever ROM Base the ROM Hack uses and said Hack's .IPS Patch, you'll have to do the following:
1) Open Lunar IPS
2) Click on "Apply IPS Patch"
3) Choose your .IPS patch on the first window that pops up.
4) Choose your .GBA ROM File on the window that will pop up afterwards.

After 10 seconds at worst, a message saying "Patching has been done" will popup, meaning that the process was completed successfully and you can now go and play the game.

| - Applying a .UPS Patch (NUPS Patcher) - |
Once you have NUPS Patcher, a Clean version of whatever ROM Base the ROM Hack uses and said Hack's .UPS Patch, you'll have to do the following:
1) Open NUPS Patcher
2) Click on "Apply an UPS Patch to a file"
3) Choose your ROM where it says "File to Patch"
4) Choose your .UPS Patch where it says "UPS Patch"
5) Choose "Ignore" where it says "If file is invalid".
6) Click on "Patch".

After 1 minute at worst, a message saying "Patching has been done" will popup, meaning that the process was completed successfully and you can now go and play the game.

| - Applying a .UPS Patch (ROM Patcher JS) - |
Once you have a Clean version of whatever ROM Base the ROM Hack uses and said Hack's .UPS Patch, you'll have to do the following:
1) Go to ROM Patcher JS's website (linked at the beginning of the document)
2) Click on the "Browse" button in the ROM File entry.
3) Choose your ROM in the window that opens up.
4) Choose your .UPS Patch where it says "Patch File"
5) Click on "Apply Patch".

After 1 minute at worst, your web browser will prompt you to download the patched ROM which you can then boot up with your favourite GBA Emulator.

Have fun!