If you do manage to find the original .rar file and extract the .swf (Shockwave Flash) file inside, you will run into a modern hurdle: Adobe Flash Player is no longer supported by major web browsers. To view this type of content today, you typically need:
An open-source Flash Player emulator that can run many classic files directly in a browser or as a standalone app. Feel The Flash Hardcore - Kasumi Rebirth V3.1-hotfile.rar
Because "Feel The Flash Hardcore - Kasumi Rebirth V3.1-hotfile.rar" is an old file frequently hosted on unverified third-party sites, please exercise caution. Old "warez" or file-sharing sites often repurpose these popular file names to distribute malware or unwanted "download managers." Always scan any .rar or .zip files with updated antivirus software before extracting them. If you do manage to find the original
A massive preservation project dedicated to saving Flash games and animations from disappearing. Safety Warning Old "warez" or file-sharing sites often repurpose these