what does the companion cube say
About. The Weighted Companion Cube is an item in the video game Portal that is a type of weighted storage cube with hearts on itâs sides.Weighted storage cubes are often used to hold down large buttons on the ground in order to solve the various puzzles throughout the game.he artistic expression grew from the gameplay.â. In Portal the level that the companion cube is introduced is Test Chamber 17, and like Box Marathon, it must be used throughout the entire level in order to solve the various puzzles.