Place the blue portal on the ceiling above the pellet receptor, using the faint red light as a guide for the placement. Quickly pass through the incandescent particle field to stand next to the receptor and fire an orange portal onto the black mark on the wall that shows where the energy pellet hits. Wait for the energy pellet to warp its way to the half of the room with the pellet receptor.

The placement of the blue portal should warp the high energy pellet and send it through the incandescent particle field that houses the pellet receptor.

With the first portal placed, shoot a blue portal onto the same wall, five tiles over (to the left). First, fire an orange portal onto the wall that the energy pellet is bouncing against (place the portal directly on top of the black mark on the wall). The momentum will fling you through the incandescent particle field and to the other side of the room.Ĭontinue into the next portion of the testchamber where you'll find two incandescent particle fields that separate a high energy pellet dispenser and the pellet receptor. Having dropped from the higher, blue portal, you'll have built up momentum to carry through on your second portal warp. Drop through the orange portal to spit out of the blue portal above, and as you fall to the ground aim yourself to fall through the orange portal again. You want to place the orange portal centered with the blue portal-use the white icons on the ground as a guide. Next, fire an orange portal onto the ground.

Portal test chamber 15