The “Sonic Heroes PS3 PKG” is not a lost official release—it is a testament to the persistence of fandom. It is a Frankenstein creation: a PS2 game, stuffed into a PS3 wrapper, running through an emulator, installed via a hacked console. It is clunky, unofficial, and legally dubious.
This is where the story gets interesting. Around 2015, as PS3 custom firmware (CFW) matured, talented modders began converting their own PS2 discs into PKG files that could run on any PS3 (even non-backward-compatible slims) using Sony’s own built-in PS2 emulator (CONFIG files). Someone created a custom "wrapper" for Sonic Heroes . That wrapper is the PKG you find on archive sites today. Sonic Heroes Ps3 Pkg