well, unless the lock is broke or just stuck, no this is only fiction
get the comic,then it will say a number.copy it and the locker will open
Open Greg's locker.
Open Greg's locker.
Hide in your crushes locker and wait for them to open it!
Open Greg's locker.
Click the locker again and you will get a map of the school, revealing a secret room under the file cabinet.
His locker is on the second floor of the school, and it is stuffed with junk. Once you get the comic pieces, you will see his locker combination (9305). Open it and then recover the School Blueprint from the pile. (see related question)
You go inside the school and open the locker. You will find a book take it to Greg.
You can't open them until he is playing for a second time, but then you just click on them when your hand says open. When he is playing as you look for Manny, you have to follow Manny to the school and get the Twisted Wizard guide from Greg's locker.
you go to the school go inside go to the bottom right hand corner the 8th locker 9,27,15
Nate's locker is on the second floor of the school near the Science Room. It is obviously stuffed full of junk. The combination is on the comics that you assembled into a strip. Use the number (9305) to open the locker, then recover the School Blueprint from the mess.
The answer to the locker problem is every perfect square is a locker that is open.