I trieds to start Ghostbusters Doom and it said something about “Playpal”…can someone help me please

hmm… playpal. I'm going to take a stab and say it might have something to do with th eplayer sprites… um… check the folder where you unzipped the gb players.ziip file to. make sure there's a folder called skins under the doom2 directory and that they are unzipped correctly in it.