The first time that Greg is playing the video, you get the Guide from his locker to help him beat it, then beat it yourself and return the game to Rowley's house.
Later, after you have won the bingo game, chased the teens, and added the No Freeze to the snowplow's wipers, you will find Greg again playing Video Games instead of helping you. Open the blinds and take him back outside.
you open the blinds at Greg's house
Use it to open the laundry room door at Gregs house.
next to gregs house if not honestly i dont know
Past Rowley's House to the left
you just go to the left to surrey street and gregs house is the first one on the street
Go back to Greg's house and open the blinds.
you cant
You can find Greg's grandma if you go left past Rowley's house and you will find a house that belongs to grandma... Have fun!
You go to gregs house and go left to the laundry room :)
you go to gregs house and go to the bathroom
give Rowley his game he'll give you a credit card use it in gregs house turn of the basement get sweetys bowl go in gregs garadge
She's at work. You will find her at the end of the game.