Save for the PS3 version of GTA 4. The game is 100% completed, all pigeons are killed, and all additional missions are completed. In order to install the save into the game, you need to unpack the archive, put its contents on a disk or any other media connected to USB.
The Grand Theft Auto IV: Save Game (100% Completed) [PS3] Free Download
Then transfer the save to your PS3 and use the Save Game Utility to install it into the game. And, of course, do not forget to back up your files before starting the operation..