The only legitimate way to get this game is through the PS3 store - and with the recent shutdowns of the Xbox 360 store and Nintendo eShop store on 3DS/Wii U, preservation of this game is in danger, not to mention the dead CMOS battery issue present on the PS3 (as of the time of writing this) making digital downloads of games completely unusable. Having this (and also The House of the Dead 4 Special bundled along with it as it was on the PS3 release) would make this game live forever.