Halo: Reach’s ninth campaign level, The Package, has a cutscene where Noble Team goes through a destroyed science wing. This area only exists for the story—it never becomes playable, nor was it meant to be explored by real people. And so, a team of hardcore Halo fans sought to achieve the impossible: they wanted to break into a cutscene.
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The completed process, which was performed in January 2018, is mind boggling. For over ten minutes, Trickosity orchestrates an elaborate choreography consisting of dozens of steps which you can view above. In short: players stand in specific locations at specific times; they arrange vehicles just so; they push and place power-ups; they force their characters into strange places; they find and use special weapons; they kill enemies in specific ways—all to trick Reach’s programming into letting them phase into a part of the game they’re never supposed to see.