Installation takes time. On a Core i5 with 8GB RAM, a top compression (FitGirl) takes ~25 minutes. On an older Core 2 Duo, it can take 90 minutes. Do not panic if it stalls at 50%—that is the high compression working.

You will typically receive several .rar , .r00 , or .bin files plus a setup.exe .

: If using third-party sites like Softonic , look for "Clean" security badges that indicate the file has passed VirusTotal scans.

The worst compressed versions remove cutscenes. The top compressions keep all CGI and in-game cinematics because Prototype 2 ’s story (Heller hunting Mercer) drives the action.

, making combat feel much more fluid. The graphics are also a noticeable step up, with more distinct "zones" (Green, Yellow, and Red) that reflect the varying levels of viral infection. The "Highly Compressed" Catch

Here are some links to highly compressed PC versions of Prototype 2: