Ghost type

-type Pokémon tend to be weak in terms of attack, but they also tend to specialize in speed and special defense. Most ghost types are very hard to hit. They are strong against Psychic Pokémon.

Ghost Pokémon deal with the supernatural, specifically the realm of the dead. In the Red, Blue and Yellow versions of Pokémon, all wild Ghost Pokémon required a special item to see them clearly.

Excluding Arceus while holding a Spooky Plate, the only legendary Ghost Pokémon is Giratina.

Offensive
Super effective against:

No effect on: ,

Defense
Resistance against: ,

Weak against:

Immune to: ,

Offensive
Super effective against: ,

Not very effective against: ,

No effect on:

Defense
Resistance against: ,

Weak against: ,

Immune to: ,

Natural

 * Aftermath - Just the Drifloon family.
 * Cursed Body - Unique to the Frillish family.
 * Flame Body - Just the Litwick family; This is a ability.
 * Flash Fire - Just the Litwick family; This is a ability.
 * Frisk - Just the Shuppet family; This is a ability.
 * Insomnia - Just the Shuppet family; This is a ability.
 * Iron Fist - Just the Golett family.
 * Keen Eye - Just Sableye; This is a ability.
 * Klutz - Just the Golett family.
 * Levitate - This is a ability.
 * Multitype - Just Arceus (Ghost Arceus).
 * Mummy - Unique to the Yamask family.
 * Pressure - This is a ability.
 * Snow Cloak - Just Froslass; This is a ability.
 * Stall - Unique to Sableye.
 * Unburden - Just the Drifloon family.
 * Water Absorb - Just the Frillish family; This is a ability.
 * Wonder Guard - Unique to Shedinja.

Hidden

 * Damp - Just the Frillish family; This is a ability.
 * Flare Boost - Unique to the Drifloon family.
 * Infiltrator - Just Spiritomb; This is a ability.
 * No Guard - Just the Golett family; This is a ability.
 * Prankster - Just Sableye; This is a ability.
 * Shadow Tag - Just the Litwick family; This is a ability.
 * Telepathy - Just Giratina (Altered Form); This is a ability.

Trivia

 * The only -type Pokémon released in Generation I were Gastly and its evolutions.
 * The first pure -type Pokémon was Misdreavus.
 * Except for Sableye and Spiritomb, all dual-type Ghost-types have unique type combinations, or type combinations exclusive to their evolutionary relatives.
 * The Ghost type is the least common type, having 27 members.