CVG: Portal is one of the smartest games ever made. Not just because of its overtly fiendish, inter dimensional puzzles, but the way it makes a complex idea instantly accessible.
Within minutes of holding the Portal Gun, you get it. You understand the concepts of creating doorways and skipping between them, using momentum to propel yourself over obstacles and dropping crates onto switches to open entrances and exits.
It's this considered, yet unobtrusive, design that developers Valve are famous for, and they're doing it again with Portal 2 - the hottest PS3 game announcement of E3. This time, we see more ambition, more insane physics, more puzzles and, yes, more GLaDOS.