They should then proceed to use the Forge turret glitch to enter the small compartment that holds the cube. To reach one of these 'Da Vinci Cubes', a player must place a Machine Gun Turret against the top of the lift. On Heretic, an untextured cube is hidden inside each of the lifts at the center of the map. Towards the middle of the light, the Easter egg can be seen. Person A should drag Person B up the wall while B is still against it. A second player ( Person B) must then man the turret and have Person A pick the turret up. Person A must then fly to a tower (but watch out for kill barriers) and spawn a turret against the light in the tower. One player ( Person A) must, while in Edit Mode, exit the map from the Sky Bubble by spawning a teleporter outside the map. To see the eggs, two players must cooperate. These beams are very similar to the projectiles fired by a Gauss Warthog. However, unlike the beams on Sandtrap, Sandbox's beams can be blocked by bubble shields and most Forge objects. The beams on Sandbox are much more accurate, as they were meant to target specific players. In Sandbox, the eggs fire much more powerful beams directly at escaping players, killing such players almost instantly.

The eggs will be near the top-right of the towers. To get a closer look at the Eggs in Sandtrap, you'll need to use Pan Cam to exit the map in Theater and fly to any of the towers. In both cases, the eggs' kills are attributed to The Guardians. The beams themselves are harmless, unlike the beams on Sandbox. A landmine will trigger wherever the beam hits the ground. In Sandtrap, the eggs fire orange beams into the sand whenever a player tries to exit the map these beams activate brute landmines that are buried along the level's perimeter. Despite being called Easter eggs, these items were never intended to be discovered by players, they are mere anomalies left in the final version of the game for unknown reasons. On Sandtrap and Sandbox, spherical objects dubbed 'Easter eggs' and also known as 'Da Vinci Eggs', are located near or inside large, tower-like Forerunner structures, and in both levels serve to keep the player from exiting the level.

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