Spirit
Strength: Nothing
Weakness: Smudge Sticks
Evidence: Spirit Box, Fingerprints, Ghost Writing

Wraith
Strength: Leaves no footprints
Weakness: Salt
Evidence: Fingerprints, Freezing Temps, Spirit Box

Phantom
Strength: Looking at it will considerably drop sanity
Weakness: Taking a photo will make it temporarily disappear
Evidence: EMF 5, Ghost Orb, Freezing Temps

Poltergeist
Strength: Can throw a huge amount of objects at once
Weakness: Almost ineffective in an empty room
Evidence: Spirit Box, Fingerprints, Ghost Orb

Banshee
Strength: Targets one person at a time
Weakness: Less effective near a crucifix
Evidence: EMF 5, Fingerprints, Freezing Temps

Jinn
Strength: Will travel at a faster speed if it's victim is far away
Weakness: Turning off the location's power source will prevent the Jinn from using it's ability
Evidence: Spirit Box, Ghost Orb, EMF 5

Mare
Strength: Increased chance to attack in the dark
Weakness: Turning on the lights will lower it's chance to attack
Evidence: Spirit Box, Ghost Orb, Freezing Temps

Revenant
Strength: Will travel at a significantly faster speed when hunting a victim
Weakness: Hiding will cause it to move very slowly
Evidence: EMF 5, Fingerprints, Ghost Writing

Shade
Strength: Shy and harder to find
Weakness: Will not enter hunting mode if there are multiple people nearby
Evidence: EMF 5, Ghost Orb, Ghost Writing

Demon
Strength: Will attack more often than any other ghost
Weakness: Asking a Demon a successful question on the Ouija Board won't lower the user's sanity
Evidence: Spirit Box, Ghost Writing, Freezing Temps

Yurei
Strength: Stronger effect on people's sanity
Weakness: Smudging the room will cause it to not wander the location for long
Evidence: Ghost Orb, Ghost Writing, Freezing Temps

Oni
Strength: Can move objects at great speed and are more active when people are nearby
Weakness: Being more active will make the Oni easier to find and identify
Evidence: EMF 5, Spirit Box, Ghost Writing