Patching DS ROM Hacks. Patching a Pokemon Nintendo DS rom hack is fairly easy, oftentimes the game author attaches a readme instructions file with the rom hack patch file. The application called xdelta is commonly used to patch NDS rom hacks. When applying a patch you need two files, the original ROM file, and rom hack patch file. Pokemon - Diamond Version (v05) (U)(Legacy) is the first Pokemon game that was released on the Nintendo DS handheld. The other first game was Pokemon - Pearl Version (v05) (U)(Legacy), which also was released on the Nintendo DS handheld. This game contains 493 Pokemon in total. Share your ongoing projects here. To post, you must at least have: Name & Description Representative Screenshots A Playable Demo.