You go to the eye doctor and ask for a test. Then every letter he points to, choose the opposite letter. He will give you special glasses that tell you where lasers are. Then go to the control center and you should be able to get in at the roof of the control center.
To gain control of the toy truck in the game Poptropica you must have the remote control. The remote control is located on the top of the refrigerator. Once you obtain this, you will be able to move the truck as you wish.
Control center? The endoplasmic reticulum in the control center for transportation means. However, the nucleus is the one that tells the cell what to do, and it has all of the DNA and chromosomes stored in it. The nucleus would be the control center.
The B.A.D. satellite is orbiting Poptropica. The satellite control center (and a transporter) are to the right of Toupee Terrace. You cannot enter the complex until you have rescued all three of the kidnapped spies, because the center is protected by lasers. (see the related question)