The best puzzle-platform video game out there. The Aperture Science Handheld Portal Device can create two portals that connect with each other through two surfaces in three-dimensional space. It sounds confusing, but it's not. Think of it this way: go through one, come out the other, much like sexual intercourse. Oh wait, that's probably not a good comparison.

Portal 2 expands on its predecessor in a number of ways. Along with a few more characters in the game to interact with, you've also got excursion funnels, hard light bridges, three distinct types of gel, aerial faith plates, and MORE. There's just so many new things in this game that I almost had a heart attack before I reached the end.

Portal 2 also excels with the storyline and character development. Wheatley's a retarded robot who does remarkably stupid and humorous things throughout the game, and GLaDOS is simply a bitch. While my descriptions are simplistic in nature, the game provides a better explanation. BUY NOW.