well you need tall the necessary plugins in order to actually play the game. namely the GPU plugins (Pete's or Lewpy's depending on your card). a sound plugin (or use the internal one). a cd plugin (Pete's is good). you need a PSX BIOS but i won't say where. read the FAQs and you'll be up in no time. the PEC plugin is just the same except you redirect your GPU plugin within it. just readthe stuff that the programs come with and you'll understand. good luck.