For those using the ShadPS4 emulator on PC, updates are typically applied by placing the files in the game's directory or using the emulator's built-in file installer to ensure the "CUSA" game folder is correctly recognized.

Finding a PKG update for PS4 is complicated because the game was never officially released for that console. While it is a cult classic, Blur (2010) was strictly a PS3, Xbox 360, and PC title.

– Note that Blur (the racing game by Bizarre Creations) was never officially released for PS4. It was on PS3, Xbox 360, and PC. Any “PS4 PKG” would be unofficial/homebrew and likely a fake or a port attempt by fans, but no stable public version exists.