Helicopter way:
Fly a helicopter to the Temple Ruins at 109084.
Land it on top of the Ziggurat's ceiling. (Cannot be the rim of it)
Exit the helicopter and your guy will glitch around.
Editor way:
Go to the Temple ruins location.
Place a unit on top of the Ziggurat's ceiling. (Cannot be the rim of it)
Click play and your guy will glitch around in it.