PC versionPS2WIP Fans have made a PC version. Some are still early, so read the project page first.
Fans took The Grim Adventures of Billy & Mandy apart and rebuilt it so it runs natively on a computer, often with widescreen, higher frame rates and mods. Here is the project we know about:
Billy & Mandy (SLUS_214.51) statically recompiled to native C++ for Windows on PS2Recomp