To get into the garage at Greg's house, you have to get Rodrick to move his van. But you cannot enter his room while he is playing music -- you have to turn off his power, using Rowley's Joshie card to open the laundry room door.
This continues the game after you follow Manny's trail out of the house to Rowley's, then chase him left to the school. You will retrieve the Twisted Wizard guide from Greg's locker, then take it back to his house to play the game. When you return the game CD to Rowley, he gives you his Joshie club card. Use it to open the laundry room at Greg's house and turn off the power to Rodrick's room. When he leaves, get the dog bowl from his room, then go outside and you can enter the garage.
(see the full solution at the related question below)
Push the round garbage can right until it is on the left side of the seesaw. (It must be exactly on the seat). Climb the tree to the right and grab the combination slip that is there. Jump down on the right seesaw seat and the can should be thrown onto the ledge. If it only moves to the left a bit, push it back on and try again.
Slide it along the ledge to reach the window.
You push the trash can on the seesaw and the get as high on the tree as u can and jump on the other end of the seesaw and the trash can should land on the second story of the building. While you are on the tree get the piece of paper that should be there.
First, you'll need Joshie's Membership Card. Here's how it goes:
1. Go to the bathroom in Greg's house, which leads to the laundry room. Use the Joshie's Membership Card (given by Rowley) to open the door.
2. Go inside the laundry room and "examine" a switchbox on the wall of the laundry room.
3. Switch off Rodrick's room.
4. Go out of the laundry room and you'll see that Rodrick is gone and no more loud music is coming from his basement door.
You can only enter the school when you are chasing Greg's little brother Manny. In Greg's house, pick up the Address Book, then go out Manny's window and follow his tracks left across the rooftops to Rowley's house. He will run you down with the rumble bike and continue past his house. Chase him up the tree, then right to the school. When he enters, push the trashcan onto the seesaw, then climb the tree and jump down on the right side, throwing the can onto the ledge. Push it left and you can enter the school. Chase Manny, then stop and Greg's locker and open it with the combination.
At this point you should follow Manny right to Leisure Towers, and climb up the outside to see grandpa (33-C). You can also visit Whirley Street to recover the snow shovel there. But you can also bring the Guide back to Greg's house and later visit Grandpa.
in 325 North Main Street.
She's at work. You will find her at the end of the game.
the leaf blower is at gregs garage
next to gregs house if not honestly i dont know
Use it to open the laundry room door at Gregs house.
5th lockers from the broken locker go to the right
You go right and keep following gregs brother till you get to the school
When you unlock Gregs locker the guide is in there
Past Rowley's House to the left
to the right of main street also known as the place where your blimp lands
it is in gregs garage after you kick rodirick out by turning off the lights
she's not there in "Wimpy Wonderland". She only appears after you beat the game and after you do the sledding mini-game.