Bad Bad Acting: The kid who plays Walter, the son of Ron and Veronica. He's worse than Christopher Walken when it comes to blatantly reading cue cards off-screen - he barely ever looks any character he's interacting with in the eye since he's too busy reading. And that's not even mentioning the delivery.
Base Breaker: Chani, Brick's love interest. Some find her funny, others find her tedious and irritating and only adding to Brick's Flanderization.
The end fight scene. While it was pretty much mandatory after the memorable fight scene in the first movie, some felt that this one went on far too long and got far too ridiculous to be funny.
Crazy Awesome: The last fight in the movie, involving the ghost of Stonewall Jackson that eats souls, a Minotaur, Ron's former boss turning into a were-hyena, the psychiatrist turning out to have psychic powers, Wes Mantooth coming to save the Channel 4 Team by threatening Lame and his goons by attempting Taking You with Me and Kanye West, Will Smith, Jim Carrey, Marion Cotillard, Tina Fey, Amy Poehler, Liam Neeson, and Sacha Baron Cohen showing up to fight as newscasters.
And a Greek goddess played by Kirsten Dunst gives the signal to start the game.