Xbox 360 Critic Reviews

While it's worth replaying to catch the dialogue you missed the first time round - a spectacular rarity in any game - and to hunt out the hidden Rat Man rooms, there isn't enough variety in the way you solve puzzles to sustain repeat runthroughs. We're going to need DLC, and plenty of it, to keep our co-op partnership going.

Valve has created a masterpiece in Portal 2. The depth of content, the mind-bending mechanics and fantastic experience are almost certain to satisfy ardent fans of the first game; and to all newcomers to the series, it's as simple as this: prepare to have your mind blown. Over and over again.

Despite being so much bigger than the original, I actually felt a little melancholy once Portal 2 was over, simply because it's so rare to find a game this smart, this funny, and this rich with detail. It elevates Portal from an odd, memorable experiment to one of the most significant series in Valve's stable with a unique voice and an incredible level of quality that all developers should aspire to.

Portal 2 is a masterpiece. Valve did everything possible to evolve the original concept, creating an almost perfect experience only disturbed by a couple of minor issues. With both an intense single-player mode and a perfect co-op multiplayer Portal 2 is a true must-buy.

It's a work of masterful craft, mechanically constructed with military precision, artistically wrapped in a tremendous story and environment. Most impressively, its achievements feel effortless.

A mere ten minutes here will yield more memorable moments than you're likely to squeeze out of the entirety of most other games this year. In all aspects of its design, Portal 2 is genius.

Bigger, tougher, and funnier, Portal 2 manages to expand on its perfectly succinct predecessor in just about every way. Boasting two excellent campaigns, each rife with satisfying puzzles and even more satisfying "Eureka!" moments, Valve's latest is an absolute must-own, plain and simple.

Never before has a review embargo had us screaming inside so badly that our mind eventually goes hoarse. We've wanted to shout from the rooftops about how Portal 2 not only betters the original Portal, but completely annihilates it...If you thought the original Portal was a masterpiece, prepare to have your mind blown.

While it's unclear if we'll ever see GLaDOS or Chell again, this much is certain: Portal 2 is one of the best games of this generation.

Portal 2 is a masterful execution of one of the key components of gaming, fun. Valve has really outdone themselves this time, and managed to make me say, "What's episode 3?"