Portal's Companion Cube is perhaps one of gaming's most memorable and lovable characters (items?). But is the Companion Cube another cruel test set up by GLaDOS? What sinister secret is hidden behind the Companion Cube's cute pink hearts? Like most other things in Portal, the cube may be more than meets the eye... Game Theory, part of the Game Theorist network. Check out all our shows: Game Theory:    • Game Theory: The Complete Series   Game Exchange:    • Game Exchange   Digressing and Sidequesting (DSNQ):    • Digressing and Sidequesting