Portal 2 hit stores today, and the reviews are already starting to roll in. For those who don’t already know, “split-screen and online co-operative play are possible on both console versions; unlike the PS3 version, the Xbox 360 version does not include a trimmed down variation of Steam.” Product page. Video review after the break. Click here for more screenshots. Here’s the bottom line:

Portal 2 makes the original look like the prototype it was. It’s filled with a larger cast of characters vividly brought to life through brilliant writing and some of the best voice acting in video games.

[via IGN]