Season 4 · 52 episodes · 1 credit each
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Susan and Mary purposely turn themselves into babies while the parents are out, and Johnny has to keep them safe from the irresponsible babysitter Gil; this interferes with a party he and Dukey had been planning.
2009-09-10 11mNow playingJohnny tricks his sisters into letting him have teleporting powers. Susan and Mary mess with the powers to get revenge. Later the twins accidentally get them caught in a middle of an art robbery.
2009-09-10 11mAfter Johnny lands his bike into a garbage truck, he becomes a Lady Bird Scout and tries to sell 1,000 boxes of cookies to get a new one. Little does he know, Sissy wants the bike as well, but for a better reason.
2009-09-17 11mJohnny goes back in time in order to get a sloth bone for the twins, but when he returns he becomes a caveman, interfering with his grounding from selling Hugh's personal items.
2009-09-17 11mJohnny and Dukey run away when Johnny's parents say he's old enough to do chores but not old enough to watch PG-13 movies.
2009-09-24 11mJohnny steals a portable black hole, which later creates an early apocalypse.
2009-09-24 11mSusan and Mary build Johnny a robot in order to help him do his homework, but the robot ends up stealing things for Johnny.
2009-10-01 11mSusan and Mary switch Johnny and Hugh's brains after the two make a bet that involves taking on each other's lives.
2009-10-08 11mJohnny and Dukey try to get in a dog show which only allows perfectly groomed and trained dogs.
2009-10-08 11mDukey drinks a liquid which makes him turn into a monster. To make matters worse, a dog catcher (and later Mr. Black and Mr. White) are after him.
2009-10-15 11mJohnny wants to get a trophy to put in his trophy case. Susan and Mary get obsessed with winning, so the three of them enter The Pork Belly River Jumpoff to win 1 million dollars and a trophy.
2009-10-15 11mSusan and Mary make fortune cookies that come true, and Johnny sells them with the typical drastic results.
2009-11-26 11mThe twins' latest invention accidentally makes them dumb thanks to Johnny right before their scholarship interview.
2009-11-26 11m★ 10.0Johnny gets hired to stop Bling-bling from kissing Susan, but Johnny turns on the sisters once Bling-Bling bribes him.
2009-12-03 11mJohnny turns into a mouse for Susan and Mary, but when Mr. Mittens comes, things get chaotic. This episode is a parody of Tom and Jerry.
2009-12-03 11mJohnny tries to get invited to a party to stop a villain. NOTE: Susan and Mary don't appear in this episode.
2009-12-10 11mMr. Whacko invents a new helium gum that lifts kids into the sky, and Johnny must save them.
2009-12-10 11mJohnny travels to 1845 when school was easier, but he gets stuck there because the power supplier to the Turbo Time Tea house hasn't been invented yet. The sisters and Johnny try to find outdated technology to power the tea house.
2010-01-07 11mJohnny creates a magnetic force field on the Earth which makes Porkbelly the new north pole.
2010-01-07 11mJohnny and Dukey get framed for stuff that Johnny and Dukey look alike robots (which Mr. Black and Mr. White made) do around Porkbelly.
2010-02-04 11mJohnny keeps attempting to ride down Suicide hill, but Susan and Mary keep redeeming Johnny's coupons.
2010-02-04 11mJohnny and Dukey decide to remain in super hero mode permanently but find being a superhero is harder than they think.
2010-02-18 11mThe twins upgrade Johnny's new cell phone. Later the phone becomes too intelligent and begins hacking government space missiles.
2010-02-25 11mJohnny goes on a trip to the museum and brings the things to life, including a mummy.
2010-02-25 11mJohnny's mail order foam monster becomes a real monster once the twins swap the water with their bottle of "side effects".
2010-05-10 11mWhen Sissy considers Johnny too gross to help her in a science project, he begs Susan and Mary to change his personality.
2010-05-17 11mJohnny poses as a princess in order to prevent a war. Meanwhile, Susan and Mary decide that they would like to act like normal girls.
2010-05-24 11mAfter getting his 99th detention, Johnny learns he must perform 99 good deeds or he will be sent to military school.
2010-07-05 11mJohnny and Dukey challenge his sisters, their friends, and their enemies to a survival challenge in which the winning team gets hundreds of dollars in gift certificates.
2010-07-12 11mWhile the tests go on vacation, Johnny and Dukey try to get back into their hotel room and avoid the hotel manager that doesn't allow pets.
2010-07-19 11mMr. Black moves in with the Tests after he embarrasses Mr. White at the dance contest auditions.
2010-07-26 11mJohnny's parents keep setting Johnny up with new friends. When those don't work out, Johnny reveals Dukey's intelligence. Later, Dukey spends more time helping Johnny's parents instead of playing with Johnny.
2010-08-02 11mJohnny once again has to protect Susan from Bling Bling Boy who is determined to have her as his valentine.
2010-08-09 11mSusan and Mary both want Gil to go on a date with them, so they put up a wrestling match using rough guts (Susan uses Johnny's while Mary uses a lion's), but it leads to destructive results.
2010-08-16 11mJohnny goes to the beach to surf, but there are no waves, so Susan and Mary build a wave making machine and special surfboard for him.
2010-08-23 11mJohnny becomes obsessed with domination after Susan and Mary bring his chess pieces to life.
2010-09-06 11mJohnny uses one of his sisters' inventions to bring two cartoon characters to the real world in order to scare Sissy out of the house, but the characters mistake Porkbelly for a zombie world and try to destroy it.
2010-09-13 11mIt's Lila's birthday and the family spends the morning to make her birthday a success. Johnny struggles to make her breakfast, Hugh tries to figure out a good but inexpensive gift for her, and the twins keep trap Lila in her bedroom until Hugh and Johnny are ready.
2010-09-20 11mJohnny 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.
2010-10-04 11mJohnny gets a wart, and when his sisters try to get rid of it, it gives the wart intelligence and seems to make Johnny's life better, but he tries to take over his body as he gets more powerful.
2010-10-11 11mWhen 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.
2010-10-18 11mJohnny ditches school with a relentless truant officer in hot pursuit.
2010-10-25 11mDark Vegan once again tries to destroy Johnny, who is trying to cheer up lonely Repto-Slicer.
2010-11-01 11mHugh wants to train Johnny to be good at sports so that he could get a sports scholarship to college.
2010-11-08 11mJohnny, his friends, and his enemies all compete in a boat race against an arrogant rowing team.
2010-11-15 11mJohnny is determined to get a flytrap plant from his sisters for his school's science fair.
2010-11-22 11mJohnny is in charge of the school play about recycling while Susan and Mary create a garbage-eating monster.
2010-11-29 11mThe general takes away the lab, and than builds agent cyborgs. They charge up Johnny X and their friends to stop them!
2010-12-30 11mEach episode costs 1 credit. Credits are $1 each, and unlocked episodes stay in your account permanently.
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This season has 52 episodes. They are listed in order below and the player advances automatically when an episode ends.
