AI Shelton made a deal with Neku that if Neku destroyed the cube, Shelton would tell him how to get to Hailey. Neku fulfilled his half of the bargain and destroyed the cube, preventing Soundwave from deleting Shelton. (Disruptive Selection)
In real lifeEdit
The Escher cube is named after M.C. Escher, and is also known as a Necker cube. It is an impossible construction.