Hot off its "Best Handheld Game" win at the 2009 Game Developer Choice Awards, Ready at Dawn has divulged the existence of a previously undiscovered mode within God of War: Chains of Olympus. Called "Cube of War," it allows players to take on the game's menagerie of murderous malcontents as ... an Aperture Science Weighted Companion Cube.
RAD isn't saying how the deal to get the Cube in the game -- and out of Portal -- was struck, but it does have instructions on unlocking this tasty (like cake) triumph: "if you finish Chains of Olympus in god mode, no upgrades, and collect all the urns of power twice without dying you open up the companion cube as a hidden character." If you can muster that, we'd consider it a huge success. If you can't, at least watch what you're missing after the break.