This game really does set the boundaries for a multi-player / co-op shooter. After LOVING the first one I picked this one up and was not disappointed. The world is varied and textured cartooney like the last which is great and works really well for the game. The graphics are very bright and colourful and all of the guns are shiny and have multiple colours.
You can play solo or team up with 4 other people (which I recommend as its alot more fun) and do missions throughout pandora trying to stop handsome jack from awakening the warrior to destroy everything he wants. The variety of guns is endless and the replay factor is amongst the best of any game as there are just so many items and quests and different enemies to kill on this game.
This isn't the type of game you can just complete in around 10 hours it takes ages which is a good thing and there is plenty of DLC to go with it. There are many challenging bosses you can kill and then farm over and over for a chance to get rare weapons and show off to your friends. You can play as 4 different classes (5 with a pre-order edition) each with their special fighting ability and you can customise your characters appearance in many ways.
The game itself it very witty and funny and the in game levelling up system and menus are very fun and simple. You have a max level of 50 (at the moment before DLC) each level you get a skillpoint to put on a certain skill that improves something about your character like in number 1. But on this you have a Badass rank, every time you do a certain thing such as kill an enemy a certain way or find things, you get tokens to spend such as 0.7 percent more health or damage. These stack alot and account for each of your characters in total so is very useful in the long run.
If your a fan of shooters and want to play with friends (and don't mind not realistic graphics) then this game is for you. Borderlands 1 won game of the year and I'm sure this will too as it's that fun. Well worth your money.