If the game crashes after loading, the compression might have corrupted the files. Re-download or verify with SFV checksums (often provided on trusted sites).
This is the most common scenario. You download a small file, extract it, and find a text document or an executable file. When you run it, it tells you that you need to visit a specific website to get a "password" or a "decryption key." That website forces you to complete endless surveys or download mobile apps. The uploader earns money for every survey completed, and you never get the game. Ps3 Game Highly Compressed