I love this game!

User Rating: 10 | Portal: Still Alive X360
I downloaded the trial version and very soon after that bought the full version. Simply put, this game is great! I love video game innovation and this is full of it. The levels are challenging but doable. There is a zero frustration factor and a great level of satisfaction after solving each puzzle. This is a great game to just chill out to. I'm sure there we'll see more of this 'portal' concept. It's a blast finding a surface to port to. And looping through portals to gain momentum is AWESOME. This is a puzzle game in FPS format, which puts you right into the puzzle. It's not a very long game (which I also like). If you do like a long game, the challenge maps and accomplishments will surely keep you entertained long after after you beat the game. I'm not sure if there are extra downloadable maps, but I'll be sure to keep my eye out for that.