This game is so great. I am currently playing single player and it's amazing. I haven;t rlly touched multi-player because the single player is so good. You can go around climping up mountains, blowing stuff up, and jumping in the vital suits. The destructible enviornments are sweet along with the great array of weaponry. There are rocket launchers, homing lasers, gattling guns, plasma guns, shotguns, machine guns, and plenty more. This game will keep you occupied and you'll have a great time playing it. You will get lost in the game. All of the bosses and achievements rlly give this one alot of replay value and i seriously reccomend that you pick this one up. This game went above and beyond the hype. You won't be sorry.