Because if you alter a legit .cia, you break the signature and it's no longer legit. If we could just arbitrarily change game files and have the 3DS play them, there'd be no need for an exploit in the first place.Hey guys, super curious. What's stopping us from injecting cubic ninja or OoT into a legit cia and using that for exploits? I mean obviously its not possible because otherwise it would have been done by now, but why? Is the legit cia's key still game specific, but not console specific?