The desire to play Sonic Heroes on the PS3 stems from a combination of nostalgia and the practical need for backward compatibility. Although the PS3 does support some backward compatibility with PS2 games, the compatibility list is limited, and not all titles are supported. Sonic Heroes, being a PS2-era game, benefits from this feature but obtaining it through official channels can be challenging. This challenge drives some enthusiasts to seek out PKG files as a means of experiencing the game on their PS3 systems.