Between Rina's knowledges of the technological and the supernatural, she's able to figure things out.  The computer is the mainframe for the entire set of robotics, a considerable machine, but the Artificial Intelligence he uses is incomplete.  Although she can't check through the data to figure out how, there's a number of ports which are required to fill in the gaps where the system simply doesn't know how to respond to a particular action.  For that, the extradimensional entities are directly plugged into the machine, and their perpetual task is to inform the computer of how to handle tasks which it doesn't understand.<br/><br/>It wouldn't take much even to shut it down.  She could partially manifest for a moment and press the switch to turn it off.  Such an act would likely lead to the freedom of the creatures, but once so freed, there's no way to tell how they'd react.<br/><br/>"Looks like we're going hot," Theta said.  "Everyone, get to the teleporter.  Basement, swimming pool, or top of the mountain, your choice.  If I'm right, we're going to have to handle all the maids before Mr. Shisenu will stop, and I'll do everything I can to block any transmissions he makes to outgoing satellites."<br/><br/>And then she remembers.  "No, wait...everyone stay off the mountain.  Snipers, get on top of the roof of the mansion instead."  Upon the map, various Xs appeared in bright red, detailing the exact position of each maid.  "We go hot in ten seconds.  Everyone not already on the island, mark where you want to be on your datachip."