To get in to the school do stuff then you should get a massage on the phone saying about the gaurd is at the frount of the school talk to him, then you'll get massage again saying that an old army like person is some where go to him, then you have to get this disc but dont touch the beams, get the disc you grind someting so you going about the room to samash 3 lights, get out, then it shows something: grind a wire and make it to the clock tower. do it the the clock changes to 3:00 then the gaurd gets steped on by kids. you unlocked the school and can use the gaurd in 2 player!