Here is everything you need to know about the game, the technical side of ISOs, and why this version is still considered the definitive experience. The Legacy of Ninja Gaiden 2

A standard Ninja Gaiden 2 ISO should be roughly 6.8 GB to 7.3 GB . If a file is significantly smaller (like 100MB), it is likely a scam or a virus.

Downloading ISOs for games you do not own is considered copyright infringement. Most enthusiasts recommend ripping the ISO from your own physical disc using a compatible PC drive to stay within the realm of "fair use" preservation. How to Play Ninja Gaiden 2 Today