Before you can “stage your own supernatural battles” The Real Ghostbusters need to be apart of it too. In 1986 Kenner knew what we were asking Santa for. Each The Real Ghostbuster came with a proton pack (built in colorful proton streams included) and Class II looking ghosts to bust. Other accessories wouldn’t be included until later figure lines.
Egon’s proton stream is orange and his ghost figure is Gulper Ghost.™