Thanks to an anonymous reader for pointing to the recent release of Tile Molester
, which the author describes as "..a multi-format, user-extensible graphics data editor that lets you create, view and edit graphics in arbitrary binary files, with a particular focus on binaries for game consoles."
It's written in Java, so "can be run on any platform that has a Java Runtime Environment installed"
, and the site gallery has some example graphics rips, including the often-ripped Zelda
, and the less often hacked-with classic Deluxe Paint
- other platforms thought to have editable data include Amiga, N64, and even Playstation.