you cant you have to click the tv and play and win
After you get the game guide you go to Greg's house and you click examine.
I have the same problem too but this page answered it for me (but not sure if it's right or wrong) Nope that's not it I make another account and said I was six and it still said examine.
Click on the TV (used as a monitor) to play the game. Originally the game was optional, but later became part of the quest. You can find the game in the "Games" section of the item bag.
When you bring Greg the Guide from his locker at school, click "examine" and he will beat the game. Then click on the monitor (TV) to play it yourself. When you beat it, you have to return the game CD to Rowley's house.
It lets Greg (and you) defeat the game Twisted Wizard. When you return to the house, Greg is still playing the video game. Click "examine" on the guide and he beats the game. Then click the monitor he's using and you play it yourself, using the Easy Mode preferably. (Click the Wizard before clicking Start.)
When you bring Greg the Guide from his locker at school, click "examine" and he will beat the game. Then click on the monitor (TV) to play it yourself. When you beat it, you have to return the game CD to Rowley's house.
Greg is playing video games instead of looking for Manny. You have to chase Manny to the school and get the guide from Greg's locker. When you return, he is already playing. You will use the guide from his locker (click Examine) so he can beat it. Click the game monitor and you will play it yourself. To enter Easy Mode, click the wizard before you click Start.
The guide always says Examine, rather than Play, although the island was changed shortly after its introduction to include the game Twisted Wizard as a requisite mini-game. The game itself can be played from the Games menu of the item bag, but the Easy Mode cannot be established from there.The procedure on Wimpy Wonderland is to acquire the Guide from Greg's locker, then return to his house, where he will comment on the game and you can open the Guide. Clicking the monitor (TV) he is using will prompt you to play the game. To enter Easy Mode, click the Wizard at upper left before clicking Start.
After you rcover the guide from Greg's locker, he will beat the game (click "examine"). Then click the game monitor so you can play it yourself. When you win, Greg asks you to take the CD back to Rowley. (see related question)
Click on the TV after you examine the guide and Greg wins the game. This will prompt Greg to let you play the game. Click the wizard before you click Start so that you enter Easy Mode. (see related question)
first you need to get the game guide from gregs locker at the school. then go back to his house and he will be playing the game.(you may have to chase manny around before he`s playing it) then examine the guide and talk to him then click on the tv he will enable cheats then click on you wizard you will set easy mode now the ogers will be slow.
You don't change the games and instead change your PC with an emulator to be able to play a PS1 game