If you downloaded this from a verified, reputable source, it is a standard way to get the game. However, if you found it on a random file-sharing site, Always scan .rar files with updated antivirus software before extracting them. Are you having trouble extracting the files , or
Files named exactly like this are often found on third-party "abandonware" or repack sites. Because they are executable archives, they are a common delivery method for malware or unwanted "adware" installers. Prototype 2.part2.rar
This is the second segment of a multi-part compressed archive. To extract the game, you typically need all parts (part1, part2, part3, etc.) in the same folder. If you downloaded this from a verified, reputable