Communication is essential if you are to survive while trying to rescue Super Joe from the Badds. There are communication rooms like the one above scattered
throughout the areas. With the right communicator, you can talk to your comrades outside, and get helpful advice. It's often necessary to contact them so they will open the
door to the Main System Room as well.
There are four communicators in the game; each one is used in three different areas. It's a bit of a trick in the game to find out which one goes where, but
I've got them all documented here. If you listen to all the people talking you can discern where each one goes on your own. Communicators are nessessary to have your comrades
open the bosses door.
If you enter an area with the wrong communicator, you'll get static, and need to evacuate the area and return with the proper one. (Use A+B+Start to leave)
Once you have the proper communicator, you can communicate with you comrades, or wiretap the enemy communications for special hints. Keep in mind though,
that if you wiretap, there is a chance that the Badds will find out about it, and ambush you!
In certain areas the boss door is always open, and communication is not required. These areas are: 2, 3, and 5.