You're interested in learning more about Naruto Ultimate Ninja Heroes 2, specifically a highly compressed version. Here's what I could gather:
A 50 MB file cannot contain all of the above without – think wireframe models, no voices, one background track, and glitched animations. Most likely, that “50 MB” is an archive that decompresses to 300+ MB, or it’s a fake. Naruto Ultimate Ninja Heroes 2 Highly Compressed