This is one of the best games available on any console at the moment with loads of alternative routes to choose from and I promise you'll never want the game to end because I know my brother and I didn't and it seems reviewers agreed across the board, giving this a might 90% on average.
It's now available for just £17.99 including free first class recorded delivery as part of the weekly special (which will be instock tomorrow morning according to the site), which is £4 cheaper than anywhere else, which is a great price in itself.
Don't forget to go through Quidco to receive 4% cashback, making this just £17.27 all inclusive.
I hope that helps. :)