The hardest achievement in RE4 Remake is obtaining the (accessory that provides infinite ammo for all weapons), which requires a Professional S+ run with less than 15 saves in under 5.5 hours. Using a save editor, this is reduced to a five-second click.
If you’re looking to mess around with Leon’s inventory, get infinite ammo without the hassle of fully upgrading weapons, or fix a corrupted save file, a Save Editor is your best friend. However, because RE4 Remake handles saves differently than the original, you need the right tools to avoid corrupting your data. re4 remake save editor