This game is fantastic, it's an awesome experience in co-op [though less so in single player] and is a worthy addition to your library. Sadly it's recommended for all the wrong reasons. Only play this if you have a co-op partner who resembles you in being both a masochist and a lover of bad games. You will rant, you will laugh till your eyes sting and feel like they have been covered in salt, which is ironic as you will spend 50% of this game being very very salty.
Disappearing ai, pirouetting ai that walk past enemies unmolested as you get your ♥♥♥ kicked, sewer sludge colored enemies that blend in with the muddy uninspired textures in the game, bugs and more. This game has the full gamut of badly made game mechanics that should have you running in the opposite direction of this games store page yet still I would heartily recommend this game to you as a co-op experience par excellence but you really do need a sense of humor.as well as a desire to push yourself beyond the point where you just can't go on anymore. It is the Darksydephil of video games, it keeps screwing up and wants somebody else to take the blame.
I'd also like to take the time to thank my co-op partner on this galactic journey of ineptitude. Your elitism, saltiness and devotion to getting the achievement for completing every optional objective while playing on hard made the expereince. Thank you but you're still a @#&!