Twisted Wizard

Twisted Wizard is one of Greg's video games. He was going to get it one Christmas but his present was mixed up with a present for the 'Giving Guy', so his mom bought him a new copy of Twisted Wizard. Instead of getting Twisted Wizard, he got a sweater. It is a game using a machine similar to a Sony PlayStation 2, and is described as being 'impossible to save' in the online version of Book 1. However, in the movie it is clearly a Nintendo Wii game.

Greg always beats Rowley in Twisted Wizard, with the exception of Diary of a Wimpy Kid: Dog Days where Rowley injured Greg and hindered his ability to play, thus beating him and winning the "grand prize" of a large box of chocolate-covered raisins.