Back to Aperture!

This game is my favorite game ever, easily. I have done Portal (1) but only after completing single player on Portal 2. I will mainly focus on the single player storyline as my brother doesn't really play computer games. Whatever the reviews say (and the reviews are amazing) this game is worth buying simply for the single player, it has an amazing plot and once you think you've completed an incredibly short story it turns completely around and you're only halfway through and the main new gameplay elements are introduced. The script is hilarious, hardly any games make me laugh but this does and Stephen Merchant really adds some character to the cast, and that's not even introducing GlaDos... I can't say enough good things about this game, as a hater of generic shooting games this is far more intelligent and the atmosphere is amazing. The only negatives is that the credits song isn't as good as the first and the single player isn't long enough, compared to the multiplayer, which is even better.