We can use logical reasoning to help us predict what will happen when these people try to go through the gate. Molly is 1.4m tall. The rule says if the height is less than 1.5m the gate will close.

Now make use of your psychokinetic powers and go through the obstructed path. Open Gate 1 with the help of a terminal nearby and follow the way towards the east side. Now clear this area by ...