List of Sidekick episodes

Maxum Man Mark Two: While trying to clone Maxum Man, Eric and Trevor end up with a half-human, half-hamster monster; they must try and hide him before villain Man Maid arrives.
To Party Perchance To Party: Eric and Trevor try to crash Vana's party while also dealing with supervillain Drilliam Shakespeare.

Gone Gaga: Eric tries new supergoggles to make Vana fall for him, only for it to make everyone love him after a malfunction.
Like Supervillain Like Son: Community Service Day goes horribly wrong when Eric and Trevor are forced to work for the villains, where Master XOX tries to turn Trevor evil.

A Monster Headache: Trevor's project turns Professor Pampelmoose into a plant-like monster.
Days of Golly: Golly Gee Kid, Maxum Man's former sidekick and janitor of the school, wants to relive his sidekick days.

Ain't No Party Like a Maxum Brain Party: Trevor gives Maxum Brain a virus that turns him into a wild party animal.
Hello Dolly: Eric finds out he is the most famous sidekick in the world, and quickly lets that fame go to his head; meanwhile, a villain called The Entrepreneurinator takes advantage of the situation.

The Amazing Super Chores: Eric tries not to fail at his super-chores, and in the process creates a giant ribbon monster.
Maxum Mom: Maxum Man's mom comes for a visit, and Eric poses as him to ensure to her he's still around.

Moustachesquatch: A curse turns Eric into a moustache-like monster.
The Endless Summer: Eric, Trevor and his dad hit the road for a summer vacation, and things quickly go away.

Identity Crisis: Eric comes up with a new, cooler persona, only to discover that he mistakenly copied the bully Kid Ruthless.
Fart of Darkness: Eric and Trevor are sent back to super-preschool and have to deal with the super babies.

The Bogey Man: The kids cooperate to defeat an evil golfer called The Bogey Man.
Crudburger: Eric and Trevor go to the evil side of town to obtain a forbidden hamburger.

The Henchman Challenge: The gang competes against XOX's evil henchmen in an Olympics-type event where cheating is a necessity to proceed.
Family Fun Day: Eric and Maxum Brain are forced to compete at the Family Fun Day event, where sidekicks and their families battle each other.

Slime Spree: Eric cares for an alien spore and becomes so attached to it, he hides it so it won't go home, until its angry mother heads straight for Earth.
The Short List: It is revealed Vana was originally chosen to be Maxum Man's sidekick, causing Eric to quit when she proves to do things much better than he does.

This Hour Has 22 Million Minutes: A time loop created by the villain The Clock Puncher forces Eric to live the same day over and over again.
Halloweenie: An evil wizard with a grudge against Maxum Man casts a spell that gives everyone who is dressed as Maxum Man for Halloween his powers, and it causes total chaos.

Eric Squared: Eric and Trevor travel in an alternate dimension and meet evil versions of themselves, who travel to the present and kidnap Vana and Kitty.
Squawk: Eric pretends to be Maxum Man on social media.

Internal Affairs: Vana, Kitty and Trevor try to stop Master XOX from going inside of Eric.
Virtual Mayhem: Master XOX uses a video game to steal stuff.

The Maxum Switch-eroo: Someone poses as Maxum Man.
Sleepless in Splittsboro: A ghostly villain named Nocturna invades the gang's dreams.

Everybody is Side-Fu Fighting: Eric, Kitty, Vana and Trevor learn side-fu from Sensei Jimmy, Maxum Man's old teacher.
Comic Book Zombies: A villain named Mint Condition wants to add Eric and Trevor to his collection.

Beneath the Missile-Toe: Eric ruins Christmas when he accidentally blows up Mega Santa.
Ice to Know You: Eric uses a machine to make it cold on a heatwave, but it backfires.

Ye Olde Sidekick Village: The gang goes on a field trip to an old western ghost town where a technology-hating villain, Sheriff Marshall, holds them prisoner.
News at 11AM: The gang joins the news club, and Eric becomes jealous of the new reporter, Allan Amazing.

Suit of Harms: The gang are given new safety suits and become immobilized by them.
Escape from Razzuma-traz: The gang must pass a dangerous test after a villainous teacher, Ms. Razzuma, threatens to blast them into space.

Gloves on the Run: Eric gets new super gloves and gets popular with them, unaware that they're XOX's.
Drop the Needles: Eric challenges Kid Ruthless to a "DJ battle".

Match Dot Com: Eric takes a girl to the school dance, unaware that she is Mandy Struction, a henchgirl from the evil side of town.
Stupor-ize Me: Eric and Trevor get jobs at Swell Burger, until they find that their manager is acting suspiciously.

Teenage Mummies in Love: Teen heartthrob Joshua Sideburns is shooting a movie in Splitsboro, and he makes Eric and Trevor his bodyguards.
Henchman for a Day: Eric goes to the bad side of town for the student exchange program and ends up enjoying it a lot more than his normal life, Mainly because Mandy, who has grown a bit of affection for Eric since their last encounter in Match Dot Com is there too.

The Show Must Go On: Eric is determined to stay alive in a school play directed by Drilliam Shakespeare so that he can kiss Vana.
Pamplemoose and Son: Eric discovers that he may be Pamplemoose's long lost son.

Little Orphan Eric: Eric returns to the orphanage and reunites with an old friend.
Lights, Camera, Sidekick Action: Eric competes with Allan Amazing to star in a movie.

Shopping Spree: Eric and Maxum Mom go shopping at Supers R' Us.
The Spark is Gone: Eric and Trevor get stuck with Static Clint on Shadow a Super Day.

Four's a Crowd: Splitsboro is destroyed and only the four main sidekicks remain.
Super Frenemies: Eric dumps Trevor as his best friend because he keeps getting Eric in trouble.

Maxum Brain, Interrupted: Maxum Brain quits the mansion and quickly regrets his decision.
Wrinkle Resistant: Trevor's grandfather tries to turn him evil.