There is actually no version of released for the PlayStation 2. If you are looking for a game file (ISO) for that era, you are likely looking for one of the following: Ninja Gaiden (2004)
If you are looking for the Ninja Gaiden experience on a PlayStation console, you have several official options that replaced the cancelled PS2 version: Ninja gaiden ps2 iso
: Very rarely, tech-savvy communities discuss the early 2000s beta builds, though no fully playable leaked ISO has been widely verified for public download. Mislabeled ROMs There is actually no version of released for