Cyberia - Milestone 21

You've finally entered the complex, but you won't be getting much farther than that until you can overcome some of its perimeter security systems. It's time to return to solving puzzles, with deadly consequences should you fail.

The Perimeter Lock
Zak will proceed through the entrance room of the Cyberia Complex, and then into a smaller room. There is a locked door ahead that requires a specific code to open.

In the lower left corner of the panel are seven switches (1-7 from left to right). Using Zaks BLADES, perform an MRI on the panel to reveal its inner workings. The goal here is to activate the top right node without activating the bottom right nodes trap, using AND, OR, and NOT gate logic.

The code will change depending on which puzzle difficulty you selected. The solutions are as follows...


 * Easy
 * Toggle switch 1, and then switch 3.


 * Medium + Difficult
 * Toggle switch 3, then 4, then 7, then 6, and then switch 1.

Zak can now proceed into the complex itself.

Inside the Cyberia Complex
Zak will enter into a long hallway, Level 1 of the complex. The large door behind him is locked, so head down the hall until you come to another one. This one is locked as well, but there is a panel to the left that you can use to open it (the small door to you right leads to the storage room, where you would have come from had you chosen Milestone 22's path. You'll need to return there later, so ignore it for now).

The panel requires a 4-digit code to open. Zak can use an MRI here, but it won't be of much use to you. Instead, use the InfraRed scan to pick up heat traces of those who previously used the keypad, highlighting the correct numbers with a label. You'll notice that the < key used to finalize the code has the highest label number, which would mean that the key order would be from the lowest to highest label. Therefore, across all puzzle difficulties, the code would be 2571.

The door will be unlocked, and you can proceed through to the next milestone.

Possible Deaths

 * Failing to input the correct code on the Perimeter Lock will cause the floor beneath Zak to open up, and he will fall to his death.
 * Failing to input the correct code on the Security Door Lock will result in Zak being blasted by a plasma charge from within the panel.