Sprites are images with color and size limitations, used in two-dimensional video games. These sprites are meant to imitate the style of the sprites used in the SNES RPG EarthBound.
Excluding the "Unearthed" sprites, anyone may use them however they please without asking. I appreciate being credited, but I don't require it. However, if you plan to use likenesses (the avatars), you may want to ask the person(s) depicted.
Importing into PK Hack
All of these sprites can be directly imported into PK Hack. First, save the archive from the "Download" link to your hard drive and extract the image from it with your preferred archive utility (WinRAR, WinZip, 7-Zip, etc.). In PK Hack's sprite editor, find an appropriately sized sprite to replace, set the indicated palette (from the "Palette" column), click "File -> Import sprite..." and select the saved PNG image.
Avatar Sprites
Visual representations of people online. Most of these were requested and described by the depicted person. They're located here.
Character Sprites
Sprites based on characters or other intellectual property I don't own. Most of these were requested by others. They're located here.
Mother Sprites
Sprites depicting characters from the first Mother game remade in the style of Earthbound. Most of them were made for the Mother remake hack. They're located here.
Original Sprites
Sprites that belong to no one but me. You can find them here.
People Sprites
Sprites of people or characters who exist(ed) in the real world. You can find them here.
Unearthed Sprites
Sprites made for HyperBound's "Unearthed" hack. You probably shouldn't use them. You can find them here.