The WORST episodes of Johnny Test

Every episode of Johnny Test ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Johnny Test!

Crafty 11-year-old Johnny Test and his genetically modified talking dog go on high-octane adventures to save his family (and the world) from disaster.

Last Updated: 2/6/2024Network: Cartoon NetworkStatus: Ended
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Crash Test Johnny
star
3.00
5 votes

#1 - Crash Test Johnny

Season 6 - Episode 39 - Aired 2/25/2014

Johnny quits as the girls' test subject and quickly regrets his decision.

Super Johnny Action Federation
star
3.00
3 votes

#2 - Super Johnny Action Federation

Season 6 - Episode 41 - Aired 3/11/2014

Johnny and the gang acquire super powers and compete to see who is the best superhero.

Gil-Stopping Johnny
star
3.00
3 votes

#3 - Gil-Stopping Johnny

Season 6 - Episode 42 - Aired 3/11/2014

Johnny goes to extreme measures to prevent Gil from moving.

Johnny Tube
star
3.00
3 votes

#4 - Johnny Tube

Season 4 - Episode 42 - Aired 9/20/2010

Johnny wants to become a internet sensation.

Johnny's Royal Flush
star
3.00
4 votes

#5 - Johnny's Royal Flush

Season 4 - Episode 45 - Aired 10/18/2010

When Susan and Mary turns Johnny into a fish as part of one of their experiments, Hugh flushes him down the toilet by mistake where he ends up in the sewer, and he has to swim for his life when he runs into an alligator.

Johnny & Dark Vegan's Battle Brawl Mania
star
3.00
3 votes

#6 - Johnny & Dark Vegan's Battle Brawl Mania

Season 4 - Episode 47 - Aired 11/1/2010

Dark Vegan once again tries to destroy Johnny, who is trying to cheer up lonely Repto-Slicer.

Johnny Bench
star
3.00
3 votes

#7 - Johnny Bench

Season 3 - Episode 18 - Aired 1/26/2008

Johnny must make a bench for woodshop class or he goes to summer school.

Johnny Dukey Doo
star
3.00
3 votes

#8 - Johnny Dukey Doo

Season 3 - Episode 24 - Aired 2/23/2008

Johnny Dukey Doo - When a condemned hotel gets haunted by ghosts Susan and Mary drag Johnny, Dukey and Gil into the house to prove that the ghosts are fake.

Johnny Zombie Tea Party
star
3.00
3 votes

#9 - Johnny Zombie Tea Party

Season 2 - Episode 14 - Aired 1/17/2007

Johnny brings Porkbelly's founders back to life in order to help with his report.

Johnny the Kid
star
3.00
3 votes

#10 - Johnny the Kid

Season 2 - Episode 16 - Aired 2/24/2007

Johnny and his family go on vacation to a dude ranch on Susan and Mary's choice, but it is invaded by an outlaw motorcycle club shortly after they arrive. With the help from Bling-Bling Boy and Gil, both whom have also been taken a trip to the ranch, the Tests resolve to stop the bikers from ruining their fun and take back their holiday.

Johnny Meets the Pork-Ness Monsters
star
3.00
3 votes

#11 - Johnny Meets the Pork-Ness Monsters

Season 2 - Episode 18 - Aired 3/3/2007

It is a hot day and Johnny's family cannot seem to find a place where they can cool off and get wet. They go to Lake Pork-Ness, which is rumored to have a monster inhabitant. Susan and Mary believe that the idea is a total myth and try to prove there are no monsters in the lake.

Return of Johnny'mon
star
3.33
3 votes

#12 - Return of Johnny'mon

Season 3 - Episode 23 - Aired 2/23/2008

Seeking revenge, Blast Ketchup sucks Hugh into the Tiny'Mon world, trying to suck Johnny in. Thinking he is one of Johnny's Tiny'Mon, he captures him. Johnny, Dukey, Susan, and Mary must stop him. To re-exit the game, they must win another battle with Blast.

Johnny Escape From Bling Bling Island
star
3.40
5 votes

#13 - Johnny Escape From Bling Bling Island

Season 3 - Episode 16 - Aired 12/15/2007

Bling-Bling Boy steals Susan and Mary's shoes, and it is up to Johnny and a reluctant Dukey to retrieve them before their dinner with Gil.

Johnny's Chipmunk Chit Chat
star
3.50
2 votes

#14 - Johnny's Chipmunk Chit Chat

Season 6 - Episode 31 - Aired 12/4/2013

Chipmunks plot world domination after a misleading chat with Johnny.

A Picture's Worth 1000 Johnnies
star
3.50
2 votes

#15 - A Picture's Worth 1000 Johnnies

Season 6 - Episode 32 - Aired 12/4/2013

Chaos erupts at the mall when the Tests try to pose for a family portrait.

Dial J for Johnny
star
3.50
2 votes

#16 - Dial J for Johnny

Season 6 - Episode 33 - Aired 1/15/2014

Johnny and Dukey prank call historical figures using the girls' time machine.

Road Trip Johnny
star
3.50
2 votes

#17 - Road Trip Johnny

Season 6 - Episode 34 - Aired 1/15/2014

The Test family take a road trip to Upchuck Geysers.

Code Cracking Johnny
star
3.50
2 votes

#18 - Code Cracking Johnny

Season 6 - Episode 35 - Aired 2/5/2014

Johnny and Dukey cheat their way to victory in the Red Gush contest.

FrankenJohnny
star
3.50
2 votes

#19 - FrankenJohnny

Season 6 - Episode 37 - Aired 2/18/2014

Johnny and Bling-Bling fall apart after an accident with the particle accelerator.

The Johnny Express
star
3.50
2 votes

#20 - The Johnny Express

Season 6 - Episode 38 - Aired 2/18/2014

Johnny runs into trouble delivering a package for the girls.

Dukey See Johnny Do
star
3.50
4 votes

#21 - Dukey See Johnny Do

Season 6 - Episode 46 - Aired 5/7/2014

Johnny loses his sight.

The Good, the Bad & the Johnny
star
3.75
4 votes

#22 - The Good, the Bad & the Johnny

Season 2 - Episode 25 - Aired 5/12/2007

To control Johnny's frequent bad behavior, the girls split his bad genes to make his genes 100% good. The bad gene later gets a life of its own, making two Johnnys, one nice and one evil.

Johnny X: The Final Ending (JX6-b)
star
3.75
4 votes

#23 - Johnny X: The Final Ending (JX6-b)

Season 3 - Episode 26 - Aired 3/1/2008

Johnny X: The Final Ending - Following the events right after "JX6-a: A New Beginning" Dark Vegan returns to destroy the Earth with an upgraded armada. Dark Vegan, with his upgrade armada, is cutting up the Earth's trees, taking off the oxygen and sucking up the Earth's water. Johnny, Dukey, and the Johnny Stopping Evil Force 5 team up to stop Dark Vegan and return the Earth's resources.

Johnny Boat Racing
star
3.75
4 votes

#24 - Johnny Boat Racing

Season 4 - Episode 49 - Aired 11/15/2010

Johnny, his friends, and his enemies all compete in a boat race against an arrogant rowing team.

Sleepover at Johnny's
star
3.75
4 votes

#25 - Sleepover at Johnny's

Season 4 - Episode 43 - Aired 10/4/2010

Johnny is dragged into Susan and Mary's plan to get Gil to be in a sleep-over, but Bling-Bling Boy and Dark Vegan's daughter Jillian become involved as well, with the usual chaos ensuing.