If you already have a PS4 controller, you might be asking yourself how you will use it on PCSX2. To use your PS4 controller to play games using PCSX2, first, you need to connect your PS4 controller to your gaming PC. You can connect the PS4 controller to the PC using a micro-USB cable or via Bluetooth. How to use keyboard on pcsx2 emulator Ps4# How to use keyboard on pcsx2 emulator Ps4#.