You do not play as Gregory. In a twist for the portable version, you play as Gary , a junior technician for Fazbear Entertainment. Gary is equipped with a "PSP" (Portable Security Pad) —a handheld device within the game that allows him to view cameras, hack doors, and check the map.
If you are determined to play a Security Breach -style game on your PSP, here are the legitimate and fan-made options. fnaf security breach psp top
If you are looking for the more advanced mechanics found in later series entries, this is a fantastic port. It is a remake of Sister Location's "Custom Night" mode written in C++ specifically for the Sony PSP . While it might have minor bugs, the jump scares and the challenge of surviving against multiple animatronics are fully intact, giving you a taste of the high-stakes tension found in Security Breach . You do not play as Gregory