In The Problem with Paras, Cassandra's Parasect was initially a very weak Paras. Cassandra needed it to evolve into a Parasect so she can use its giant mushroom to aid her in her medical research. After battles with most of Ash's Pokémon and Team Rocket, Paras evolved.
In Hocus Pokémon, Lily needed Stun Spore from a Parasect to complete a spell.
In Gulpin it Down, an Officer Jenny used a Parasect in addition to her Meganium and Tangela during an effort to stop the massive army of Gulpin that was rioting around the town.
In Working My Way Back to Mew!, Goh caught a Parasect. It has since made further appearances in Pokémon Journeys: The Series.
In A Chansey Operation, an injured Parasect was brought to the clinic.
In Princess vs. Princess, a Parasect competed in the Queen of the Princess Festival.
In Pikachu's Vacation, a Parasect was at the Pokémon Theme Park.
In Showdown at the Po-ké Corral, multiple Parasect were living at Professor Oak's Laboratory.
In Friends to the End, a Trainer's Parasect was at the closing ceremonies of the Indigo Plateau Conference.
In The Power of One, a Parasect sensed the disturbance caused by Lawrence III.
A wild Parasect appeared in Pikachu's Rescue Adventure.
A Parasect appeared in a fantasy in The Rivalry Revival.
Multiple Parasect appeared in Celebi: The Voice of the Forest.
In Throwing in the Noctowl, a Parasect was living at Wings Alexander's barn.
In For Ho-Oh the Bells Toll!, multiple Parasect protected the Tin Tower after Team Rocket stole the Crystal Bells on the top floor.
In Showdown at the Oak Corral, a Parasect was living at Professor Oak's Laboratory.
Multiple Parasect appeared in Destiny Deoxys.
A Parasect appeared in the opening sequence of Lucario and the Mystery of Mew.
In Pokémon Ranger and the Temple of the Sea, The Phantom used a Parasect alongside a Pinsir to attack Jack Walker.
A Parasect appeared in The Keystone Pops!.
In Genesect and the Legend Awakened, a Parasect was a resident of Pokémon Hills.
A Trainer's Parasect appeared in Alola to New Adventure! and First Catch in Alola, Ketchum-Style!.
In Lillie's Egg-xhilarating Challenge!, a Parasect was playing in Lillie's garden.
A Trainer's Parasect appeared in I Choose You!.
In Currying Favor and Flavor!, a Parasect used Stun Spore on Ash and Mallow as they searched for a Mago Berry.
Six Parasect appeared in The Power of Us, with four under the ownership of Trainers and the other two being wild.
Three Parasect appeared in Securing the Future!, with two under the ownership of different Trainers and the third being wild. They joined the rest of Alola in showering Necrozma with light so it could return to its true form.
A Trainer's Parasect appeared in League Offenders and Defenders!.
In Battle Royal 151!, a Trainer's Parasect competed in the Battle Royal preliminary round of the Manalo Conference but ended up losing.
In The Battlefield of Truth and Love!, a Parasect was watching Bewear and Stufful put on a performance in their hot springs.
Two Parasect appeared in Trade, Borrow, and Steal!, with one under the ownership of a Trainer and the other being wild.
A Trainer's Parasect appeared in Take My Thief! Please!.
A Trainer's Parasect appeared in Ultra Exciting from the Shocking Start!.
||Parasect, the Mushroom Pokémon. It battles using poison spheres that spread from the mushroom canopy on its back.
Parasect debuted in Long Live the Nidoking!, where it was seen as one of the Pokémon at Fuchsia City's Safari Zone.
Crystal has a Parasect nicknamed Parasee, which first appeared in Slugging It Out With Slugma. She uses it extensively in her Pokémon catching, using its Spore attack to put targets to sleep. Parasect is capable of increasing the radius of its Spore attack to at least 3 kilometers. In Lively Larvitar, the origin of Crystal's Parasect is revealed: it, along with Crystal's Natu, Hitmonchan, and Cubone, were wild Pokémon living in Mt. Mortar and had fought with a local Arcanine that had gone berserk from a severe eye injury. Parasect was able to create medicinal spores to help Arcanine heal and Crystal recover from her fractured arms. In Lugia and Ho-Oh on the Loose (Part 1), Crystal reveals yet another ability of Parasect: it is able to use the powder attacks it possesses to combine into a wider range of spores, including one for corroding metals.
In The Last Battle XIII, a Parasect was sent to participate in the fight in Ilex Forest.
A Parasect belonging to an Aether Foundation Employee first appeared in Play the Melody That Echoes in the Altar.
Pokémon Gotta Catch 'Em All
A Parasect appeared in GDZ20, under the ownership of Ran. It reappeared in GDZ44.
Pokémon Journeys: The Series
Goh caught a Parasect in Battle Frontier Challenge: The Flute Cup!, just like he does in the anime.
Pokémon Pocket Monsters
Green's Parasect debuted in The Big Battle In The Viridian Forest!!.
Pokémon Ranger the Comic: Double Mission
Tiffany of the Go-Rock Quads owns a Parasect, which appeared in Pokémon Ranger the Comic: Double Mission Episode Three.