Note: This game is also titled Canis Canem Edit.
Alternate clothing
Successfully complete the indicated task to unlock the corresponding item:
Black ninja costume: Completely fill your yearbook.
Black skate shoes: Walk at least 50 km.
BMX champion costume: Successfully complete a bike race.
Boxing costume: Successfully complete the Boxing Challenge or Prep Challenge in Chapter 2.
Crash helmet: Finish in first place in the Kart Race at the Carnival.
Dunce hat: Turn on all the showers in the boy's locker room in the gym.
Edna mask: Destroy nineteen tombstones during Halloween.
Fast food costume: Successfully complete the Burger Joint errand in Bullworth Vale.
Firefighter's helmet: Pull the fire alarm twenty times.
Gnome costume: Smash all the garden gnomes.
Gold suit: Buy all the clothing.
Green ninja costume: Hit targets with projectiles1,000 times.
Grotto Master costume: Collect all G&G cards.
Jimmy's Skeleton Halloween costume: Successfully complete the "The Candidate" mission to unlock the "Halloween" mission.
Orderly uniform: Successfully complete "Finding Johnny Vincent" in Chapter 5.
Pirate hat: Beat up the pirate on the island near the beach house.
Prison uniform: Successfully complete all the detention mini-games.
Pumpkinhead mask: Destroy all 27 pumpkins around the school and inside the main building during the "Halloween" event.
Red ninja costume: Successfully complete the Big Prank task during Halloween at Bullworth Academy.
School mascot costume: Successfully complete "Nice Outfit" in Chapter 4.
Tiny swimsuit: Find the preppie with a blue mission on the beach at the beach house and beat his swimming time.
Wrestling uniform: Successfully complete Gym 1.
Class completion bonuses
Chemistry 1: Firecrackers available from chemistry set
Chemistry 2: Stink Bombs available from chemistry set
Chemistry 3: Itching Powder available from chemistry set
Chemistry 4: Items produced doubled from chemistry set
Chemistry 5: Chemistry set available all the time
English 1: Apology improved
English 2: Better taunts
English 3: Ability to apologize to prefects improved
English 4: Ability to taunt bullies more effectively and from a distance
English 5: Ability to apologize to police
Art 1: Able to exchange gift for a kiss from a girl
Art 2: 50% health bonus from kissing girls
Art 3: 75% health bonus from kissing girls
Art 4: 100% health bonus from kissing girls
Art 5: Ability to kiss girls without giving gifts
Gym 1: Headbutt and 3-hit knee groin combo unlocked
Gym 2: Accuracy for slingshot improved
Gym 3: Kneedrop unlocked
Gym 4: Accuracy for slingshot improved
Gym 5: Accuracy for slingshot improved
Easy money
Go to the basketball court anytime after 4:00 p.m. to play the "Penalty Shot" mini-game. Bet the maximum of $20.00. Go up to the line, then press Circle to jump. Press X to throw while in mid-jump for easy knockdowns. -From: EGHQ and Edward C. Lewis
Easy Faculty Taunts
Go to the Principle's office and taunt the secretary. When she starts to chase you, just run around the desk and continue taunting her (while locked on with L1) for as long as desired. If she grabs you, just tap Triangle(10), or if she is not already irritated, you can just keep apologizing, which also helps your stats. This works for almost all staff -- just run and taunt. -From: EGHQ
Easy yearbook photos
To get a lot of photos in the Yearbook, go to either dormitory, pull the fire alarm, stand by and press Up, then start snapping them as they run by. -From: EGHQ
Saving others from beatings
To save someone from a beating, grab the attacker(s) by pressing Triangle and throw them far away from the victim -- so they will focus on you, and you will not accidentally hit the victim. -From: EGHQ
English Class
The following is a list of the letters you are given in each English Class and the minimum number of words required within the time limit to pass the class:
English Class 1: The letters are "ELMOLW" and you need 7 words to pass the class. Here are words that can be created from those letters: Ell, Elm, Low, Mel, Mew, Mol, Mow, Ole, Owe, Owl, Lowe, Meow, Mewl, Mole, Moll, Well, Mellow.
English Class 2: The letters are "THFSGI" and you need 14 words to pass. Here are words that can be created from those letters: Fig, Fit, His, Hit, Its, Sit, Figs, Fish, Fist, Fits, Gift, Gist, Hits, Sift, Sigh, This, Fight, Gifts, Shift, Sight, Fights.
English Class 3: The letters are "ELISSM" and you need 15 words to pass. Here are words that can be created from those letters: Elm, Ism, Lei, Lie, Mil, Elms, Isle, Isms, Leis, Less, Lies, Lime, Mess, Mile, Mils, Miss, Semi, Sims, Slim, Isles, Limes, Miles, Seism, Semis, Slime, Slims, Smile, Slimes, Smiles.
English Class 4: The letters are "RAOCYN" and you need 19 words to pass. Here are words that can be created from those letters: Any, Arc, Can, Car, Cay, Con, Coy, Cry, Nay, Nor, Oar, Ran, Ray, Roc, Yon, Corn, Cory, Cyan, Narc, Racy, Roan, Yarn, Acorn, Corny, Crony, Rayon, Crayon.
English Class 5: The letters are "DGRAGE" and you need 22 words to pass. Here are words that can be created from those letters: Age, Are, Dag, Ear, Egg, Era, Erg, Gad, Gag, Rag, Red, Aged, Dare, Dear, Drag, Dreg, Egad, Gage, Gear, Grad, Rage, Read, Agger, Grade, Raged, Dagger, Ragged.
See the "Bitch" vomit in "That Bitch" mission
Hide in the trash can behind you after you place the stink bomb in "her" locker. When she does not see you, she will vomit and continue to do so as you make your escape. If she catches you before you hide she will run away screaming.