Note: The following trick requires a Kinect. In London on Earth, Harbinger will shoot 
his laser and knock everyone running to the teleporter that is on the ground linked to 
the Citadel. You will then get up and start walking in slow motion to the teleporter 
armed only with a pistol that has infinite ammunition. You normally cannot use your 
powers with LB or RB. However, you can use Kinect voice commands such as "Carnage", 
"Warp", "Singularity", or any other projectile power, and Shepard will use the power
while in the slow motion state.