Part one: 13th floor get quarter from vending machine, silver key from coat, use silver key on door, get dollar bill and screwdriver. Then use screwdriver on screws attached to vent. Get quarter on 12th and 10th floor. In 10th floor also get the clothes hanger from "clothes closet". Go back to 12th floor and use hanger in Java cup to get black key. Insert black key in elevator. Go to first floor and then go to arcade. use dollar for quarter. Go to 5th floor and get id card from movie room. Go to 6th floor, click plant and get key, use key on room. Pass for computer is "lie", click on believe picture to find a safe, the pass is 8456, get star. Go back to floor 2 and insert star next to closed area then put in earth, moon, water, fire symbol. Put all 4 quarters in the vending battery machine then go in secret area.