|Hypnosis||Pokémon - I Choose You!|
|A † shows that the move was used recently, unless all moves fit this case or there are less than five known moves.|
An × shows that the move cannot be legitimately learned by this Pokémon.
Ash first saw a Gengar in person in Lavender Town in The Tower of Terror while searching for a Ghost-type Pokémon to fight Sabrina with. Due to a close call, Ash got to spend some unexpected time with the ghostly trio, Gastly, Haunter, and Gengar. It, along with Haunter, seemed to have a fondness for Japanese stand-up, and attempt to (unsuccessfully) amuse Ash by acting as a pair of performers. It reappeared in a flashback in the following episode.
Drake of the Orange Islands used a Gengar in his battle with Ash in Hello, Pummelo! and Enter The Dragonite. His Gengar managed to confuse Ash's Tauros before he returned it and instead tried with Ash's Lapras. In the collision between Night Shade and Ice Beam, both Lapras and Gengar fainted.
Team Meanies GengarEdit
Gengar was the leader of Team Meanies in Pokémon Mystery Dungeon: Team Go-Getters out of the Gate!.
A Gengar under the ownership of Hearthome City's Gym Leader Fantina appeared in a flashback in Playing the Leveling Field!, and appeared in A Shield with a Twist where it was defeated by Ash's Buizel.
A Gengar appeared in Ghoul Daze! together with its pre-evolutions, Gastly and Haunter. A group of Gengar, along with a group of Haunter, was creating illusions within a forest in Illusion Confusion.A Gengar appeared under the ownership of a Trainer in Celebi: Voice of the Forest. A Gengar was partnered with two Team Rocket trainees in Training Daze. A Gengar appeared in One Team, Two Team, Red Team, Blue Team!.