Last Friday, we debuted Part 1 of Valve's mind-bending comic book, Portal 2: Lab Rat, a tie-in to the upcoming video game. After a long and painful weekend of waiting, it's time to wrap up this ...

Valves hotly anticipated Portal 2 is only a few weeks from unlocking on ... incredible tie-in comic for the game, called Lab Rat. Part 1 of the comic is currently available over at IGN, with ...