: To achieve extreme compression (sometimes shrinking a 16GB game down to 2GB or less), uploaders often "strip" the game. This means removing high-quality textures, cinematics, music, and voice acting, leaving you with a buggy or silent experience.
: Decompressing these files can take hours and puts immense strain on your CPU and RAM. In many cases, it is actually faster to download the full, uncompressed game from a legitimate source than to wait for a "highly compressed" installer to finish.
If you are looking for a deep dive into the actual gameplay, UMVC3 is celebrated as one of the fastest, most chaotic, and creative "tag-team" fighters ever made, though it is known for its steep learning curve and "touch-of-death" combos.