Night 1:

Memory Bert: When He Appears At The Left Door. Go to Chamber 4 and Close the Door

Memory Dan: When He Suddenly Appears In Your Office Activate The Flashing Lights With The Blue Button On The Table

Night 2:

Memory Habo: When You Hear Or See Habo Running. Go to Chamber 5 and Close the Door

Memory Bell: The same as Memory Dan

Night 3: No New Character Appears

Night 4:

Baltara: If you hear his laugh, go to camera 5 or 4. If you see him there, close the door. If it does not appear in either 4 or 5, it activates the flashing lights

Domyeo: If you hear or see Domyeo coming out of the vent. Put the Pointer/Flashlight Above His Face to Make Him Go Away