First go to Forge and go to monitor mode, fly up and look at the sun.

Look past the pillar to the right and zoom in and look for a corner pointing down.

Get closer to the death line and you should see it in the end of the corner. If you see it get a teleporter - it doesn't matter.

If its two way or a sender, put it down, then spawn a receiver node but don't drop it.

Next use your middle finger to hold the left trigger and your pointer fingers for the bumpers.

Now, move in the direction of the skull pushing the bumpers to move up and down to get near it. If you get killed don't worry, just hope it lands next to the skull.

Then use the teleporter to get close to the skull and pick it up before the towers kill you.