Finished on PC, using a controller in coop mode. It is a very mediocre game - short, simple structured semi looking levels with obvious arenas. Enemies are bullet sponges and poorly reacting on hits. Not to mention that some elements are poorly balanced, like one-hit enemies with explosive bolts which stick to you. It feels like the bare bones of the game, which initially was a UE3 engine showcase and not much more. In addition to that, we encountered many collision and AI bugs. I guess the game gets such popularity because of graphics and visuals for being one of the most earlier Xbox360 games which showcased its power, but it is not aged well as a game in my opinion. It is playable and okay to waste time, but don't try to find there something special.