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.