open the locker in the school and get the twisted wizard then give it to Greg he beats the level then gives you the game next go to Rowley's house jump on the car then hide behind the bush when Rowley's dad goes out you go in give the game to Rowley and he'll give you a card
you have to get rowlys joshie membership card and that's how you open it ( !)
You get it by giving the Twisted Wizard game to the Wimpy Kid's friend that lives next to him.
Open up the locked door in Greg's house.
It is inside Greg's house. Use the membership card to unjam the door.
you give greg the video game guide then return the game to rowely and then he give you are credit card and open the laudry room and turn off the power.
If you have the credit card you can open the Heffley's laundry room and turn off the basement electricity. Rodrick will leave the house. Now you can get in the garage. Take the leaf blower and use it on Fregley.
He will give it to you to open the jammed door if you sneak into his house and return him the twisted wizard game.
you have to set the alarm on the car go inside give rowley twisted wizard game.
the card is in gramma house if not in leisure towers
you have to get this card that opens the door. You get the card from Greg's friend.
Use the Fan Club Card.
Once you get the Joshie Card, you can put it in the slot to open the Laundry Room.