Greg already has Twisted Wizards but he cannot beat it without the Game Guide that is in his locker at school. After you get the address book, go out Manny's window and follow his tracks to Rowley's house. You will chase Manny to the school and get the game guide.
you have to get the video game that's in the locker
in his house just click on the video game screen. the game is twisted wizard.
you left click the wizard and then right click it
by the snowman
win it
no
dubrmlikespoopdech
Greg does not go anywhere on Wimpy Wonderland. When you first see him, meet him at his house and he will be playing video games while you are out searching for Manny.
first give him the cheats in rowlys locker and he will beat twisted wizard
Go to where you just saw manny.
There is a written walkthrough at the related question and a video walkthrough at the related link.
it is for rowley