How to Make Good Graphic Novels Bad

Club Penguin: Shadow Guy and Gamma Gal - Heroes Unite!

 * Amy spontaneously combusts when she touches the meteor.
 * The Toaster 3000 is just a boring old toaster and not a toaster which doubles up as a games console, milk and cookie dispenser and laser gun.
 * Webnark successfully (albeit unintentionally) destroys the Town AND the Plaza. Oh, and the Snow Forts. And maybe the Forest.
 * Have it not follow the website at all.
 * Aunt Arctic figures out Shadow Guy's secret identity right away.

Pretty much every Pokemon Adventures Book

 * Include constant swearing.
 * Have it not follow the games at all.
 * One word: Exposure!
 * The bad guys (somehow) win in every story arc.
 * Remove Diamond's and Pearl's comedy routines.
 * The protagonists don't change throughout every arc.

Plants vs. Zombies: Lawnmageddon

 * Remove Patrice.
 * Remove Crazy Dave's so-bad-it's-funny concept to make a life-size T-Rex that breathes fire.
 * Remove pretty much all of the plants.
 * Remove "Plan Chaos".
 * The zombies actually take over Neighbourville, leading to the most gruesome scene in Graphic Novel history.

Plants vs. Zombies: Grown Sweet Home

 * The plot focuses on the zombies instead of the plants.
 * Remove the human characters.
 * Remove Grrawrr-Bear the Ultimate Face Puncher.
 * The plants don't order thousands of dollars of Sunshine Pizza right near the start of the book.
 * Remove Mr. Stubbins.
 * The plants don't get rewards for doing the best job.
 * The zombies are better at disguising themselves than the plants, rather than vice Versa.
 * Remove the anti-Gravity goldfish.
 * Remove the "Plants vs. Zombies Act Like a Human Battle".
 * Remove that one turtle who shows up during the parade.

Coraline

 * Coraline doesn't know how to look after herself.
 * Remove the cat.
 * Remove Mr. Bobo (and, consequently, the mouse circus).
 * Miss Spink and Miss Forcible have no plot relevance.
 * Remove the stone with the hole in it.
 * Remove the dead children.

Vermonia Series

 * Naomi is a silent protagonist.
 * Remove Rainbow.
 * Much more disturbing imagery.