Skip this step if you have already install FreeMCBoot. STEP I: First of all you have to install FreeMCBoot on your PS2 before you play through USB. I hope you can follow all the processes step by step in other to avoid an error. Hi guys, today I’am very happy to share with you this tutorial on how to install and play an ISO games on PlayStation 2 (PS2) via USB using free mcboot.