However, the technical marriage is not perfect. The PSP lacked the second analog stick of the PlayStation 2 or GameCube. On PPSSPP, this is typically solved by mapping camera controls (originally bound to the right stick for aiming) to the device’s touchscreen, the gyroscope, or the right analog stick of a Bluetooth controller. While functional, aiming the Red9 or the semi-auto rifle can feel less precise than on a dedicated console. Furthermore, the process of finding a stable, fully-functional Resident Evil 4 ISO is fraught with risk, as many fan-made versions suffer from audio glitches, frame rate drops, or crashing during cutscenes.