Amazing. This is a must-play (but play Portal 1 first, of course). The game is a great continuation and ending to the story of the original Portal and adds a whole lot of lore. The puzzles really make you use your brain, and they are fun!

Pros
- Good story
- Co op mode so you can use all your brain power with your friends
- Lots of team achievements to get
- Custom test chamber level editor
- Good puzzles
- Endless amounts of mods and community content available (Portal: Reloaded, Portal Stories Mel, etc)

Cons
- One puzzle in the singleplayer mode and a few in coop are so mind-bogglingly difficult that you will need YouTube to help you

Overall rating: 9/10

Amazing. This is a must-play (but play Portal 1 first, of course). The game is a great continuation and ending to the story of the original Portal and adds a whole lot of lore. The puzzles really make you use your brain, and they are fun! [b]Pros[/b] - Good story - Co op mode so you can use all your brain power with your friends - Lots of team achievements to get - Custom test chamber level editor - Good puzzles - Endless amounts of mods and community content available [i](Portal: Reloaded, Portal Stories Mel, etc)[/i] [b]Cons[/b] - One puzzle in the singleplayer mode and a few in coop are so mind-bogglingly difficult that you will need YouTube to help you [b]Overall rating: 9/10[/b]