Randy becomes so dependent on the Nomicon's wisdom that he goes to it for advice on everything. To teach him a lesson, the Nomicon traps him inside and puts an alternate consciousness in Randy's body, forcing Randy to try to find a way out of this mess.

Randy and Howard follow Theresa Fowler and the rest of their classmates to a cool new club downtown only to discover The Sorceress has returned to seek revenge on the Ninja.

When the Ninja lies that his name is Ranginald Bagel, he puts the real Ranginald in danger of McFist's fury.

Coach Green brings back an old Norrisville High tradition, Prank Day! When Bash uses a dangerous Viceroy-created device for pranks, Randy must master his most difficult Ninja skill yet to stop Bash.

Randy, Howard and all the boys at Norrisville High are entranced by the new girl in school, Amanda Levay, but little do they know she's actually the Sorcerer's long lost love in disguise.

In order to score a limo ride with soccer super star Pitch Kickem, Ninja swipes a pair of shorts to help him win a shoot-out competition. When McFist sends an I.D. Bot to find the shorts, Randy's identity is compromised and Howard must take Randy's place in the competition.

When Randy helps Hannibal McFist's hippy brother Terry take control of McFist Industries, Whoopee World is turned into a fart-powered nightmare.

Mac Antfee returns to Norrisville as a motivational speaker, only to have Randy reignite his burning desire to destroy the Ninja and take his place.

When Randy inadvertently mind-wipes himself and develops amnesia, Howard must fill in as the Ninja until Randy can get his memory back.

When Viceroy creates a Robo-Rhino that makes the gang confront what scares them most, Ninja must learn to turn his own fear into a weapon.

Randy must stop a former Norrisville Ninja-turned-nemesis from recruiting an army intended to destroy the Ninja. David Koechner ("Anchorman") guest stars as Mac Antfee.

A feud breaks out when Howard is accepted into a school club and Randy isn't. But when Howard is in danger, the Ninja must put aside his grudge and come to the rescue.

When Randy loses the NinjaNomicon, he must save it before hundreds of years of Ninja wisdom is revealed to his enemies.

Randy and Howard get revenge on a French exchange student who stole their internet video fame - only to cause him to stank out and create a scene they weren't expecting.

When Howard and other students get sent to the dreaded Detention Island, Ninja must figure out how to free them. Guest star: Andy Richter as The Disciplinarian.

When Randy and Howard are forced to share a lunch table with the outcast group 'Der Monster Klub,' they realize these oddballs are playing a dangerous game that could destroy the whole school.

When Randy and Howard's video game battle gets out of hand, the Ninja must save the town from a giant robot.

Randy must learn a valuable new lesson about respect and humility when after accidently breaking his sword, he enlists the help of S. Ward Smith to get a custom-made sword. Meanwhile, S. Ward Smith's protégé, Brent, believes he was replaced by Howard and wreaks havoc on the school when he is changed into a monster by the Sorcerer.

Randy and Howard join their school's "Wave Slayer" team but as jet ski waxers. When Randy accidently damages the jet ski belonging to the team captain, Buttermaker, moments before their biggest race, he and Howard must step up and find a way to save the race.

Randy travels to the forest to retrieve sap from a sacred tree in order to restock his Ninja gadgets, but McFist beats him there and snags the tree for his holiday party. Randy poses as a Ninja Santa to get in to the party and winds up defending himself against a robot snowman and his team of elves.

When a real monster disrupts Norrisville High's annual practice Monster Drill, Randy must retrieve his Ninja mask and the NinjaNomicon in order to save entire school.

While walking Theresa Fowler and Debbie Kang home on Halloween night, Randy and Howard try to figure out what is turning everyone in town into zombies.

Randy's Ninja responsibilities drive a wedge between him and Howard during their rehearsals for Norrisville's Battle of the Bands, leaving Randy to figure out a way to balance his Ninja duties with being Howard's friend.

When a Mexican Death Bear Monster runs amok at school, Randy and Howard realize they should have paid more attention during Spanish class.

While walking Theresa Fowler and Debbie Kang home on Halloween night, Randy and Howard try to figure out what is turning everyone in town into zombies.