Now before we begin I would like to inform you that there are two types of patch files dominantly used in GBA hacking; .ips and .ups. UPS is a better form of patching and this tutorial fully endorses using the UPS format over IPS format.   IPS Format What is an IPS Patch? An IPS Patch is essentially a checklist that notes everything in the file, it can be applied to another file and everything that the patch's checklist has different is changed so that everything is the same