The Ghostbusters Guide to the Classification of Ghosts Tape #3

Class 1: lesser paranormal occurances that are generally not worth our time for example ectoplasm

Class 2: lesser non human spirits that prefer to manifest in small objects and can do no harm if the object is destroyed

Class 3: human spirits who do not remember their previous life and usually have very vague indistinct features

Class 4: human spirits that remember who they are and are able to be identified these spirits usually have more distinct features

Class 5: non human spirits created by strong emotion or ritual summoning the infamous Slimer is a prime example

Class 6: powerful non human spirits who usually take the form of animals and are extremely large proceed with caution

Class 7: these are god's and supreme beings like Gozer, or vigo the carpathian and even rowan the destroyer do not proceed alone do not proceed unprepared