Episodes

These are the Episodes with plankton in them.
 * Plankton!
 * Culture Shock
 * F.U.N.
 * Sleepy Time
 * Valentine's Day
 * Walking Small
 * Imitation Krabs
 * Christmas Who?
 * Welcome to the Chum Bucket
 * Band Geeks
 * The Fry Cook Games
 * The Algae's Always Greener
 * Mermaid Man and Barnacle Boy IV
 * Snowball Effect
 * Krusty Krab Training Video
 * Party Pooper Pants
 * Plankton's Army
 * The Sponge Who Could Fly
 * Spongebob Meets the Strangler
 * Fear of a Krabby Patty
 * Krabs vs Plankton
 * Enemy In-Law
 * Mermaid Man and Barnacle Boy IV: The Motion PIcture
 * Patrick SmartPants
 * Wishing You Well
 * New Leaf
 * Best Frenemies
 * Friend or Foe
 * Spy Buddies
 * Krabs a la Mode
 * Bucket Sweet Bucket
 * Goo Goo Gas
 * Atlanits SquarePantis
 * Mermaid Man vs. SpongeBob
 * 20,000 Patties Under the Sea
 * Banned in Bikini Bottom
 * Stanley S. SquarePants
 * Krabby Road
 * Spongicus
 * Patty Caper
 * Plankton's Regular
 * The Krabby Kronicle
 * Komputer Overload
 * No Hat for Pat
 * Chum Bucket Supreme
 * Single Cell Anniversary
 * Truth or Square
 * Chum Caverns
 * Tentacle-Vision
 * Someone's in the Kitchen with Sandy
 * The Inside Job
 * Greasy Buffoons
 * SponeBob's Last Stand
 * One Coarse Meal
 * The Play's the Thing
 * Rodeo Daze
 * Gramma's Secret Recipe
 * The Main Drain
 * The Great Patty Caper
 * That Sinking Feeling
 * Buried in Time
 * Shellback Shenanigans
 * Perfect Chemistry
 * Squidward's School for Grown-Ups
 * The Other Patty
 * Drive Thru
 * Frozen Face-Off
 * Sweet and Sour Squid
 * Plankton's Good Eye
 * Walking the Plankton
 * A SquarePants Family Vacation
 * The Krabby Patty That Ate Bikini Bottom
 * Fiasco!
 * Free Samples
 * For Here or to Go
 * Karen 2.0
 * The Good Krabby Name
 * Hello Bikini Bottom!
 * Super Evil Aquatic Villian Team Up is Go!
 * Chum Fricasse
 * Move It or Lose It
 * It's a Spongebob Christmas!
 * Squirrel Record
 * Eek, An Urchin!
 * Plankton's Pet
 * Evil Spatula
 * Jailbreak!
 * It Came From Goo Lagoon