In "Ghost Host," he is a light purple transparent creature-like ghost with light yellow eyes and red pupils, a purple tail, sharp teeth, a purple skin, and legs.
In "Séance Shméance," he is green and doesn't have legs.
In "SpongeBob Moves In!," his hands are claw-like.
In "Ghost Host," Purple Ghost was riding on a motorcycle and he crashed into SpongeBob's house wall inside and Purple Ghost survived with his head popped out of the ectoplasm and says "How was that?". SpongeBob got angry and told all of the ghosts and Nancy Suzy Fish to leave.
In "Séance Shméance," he is the first customer that comes from the underworld to eat at Rusty's Rib Eye.