GLaDOS' voice remains iconic, while the music and effects are very pleasant indeed.
Valve's visual stylings and Aperture iconography have made it in to Bridge Constructor Portal intact, which is all you really need to know.
The game's bridge building mechanics are easy to learn and get to grips with, meaning the only challenge is figuring out how to solve each test chamber.
Sixty head-scratching physics-based puzzles to tackle, and a multitude of different solutions that require some lateral thinking and ingenuity. Great stuff.
A fairly straightforward list that focuses on achieving perfection across all sixty puzzles. Delivering all of those convoys unmolested will be a toughie.