Platforms, robots, and now turrets. What does Valve have up its sleeve for the fourth and final installment? We'll find out next week. For now, turrets:
Portal 2 is being developed for the PlayStation 3, Xbox 360, Windows PCs, and Mac OS. The game is set for launch on April 19.
Sharkey says: Ha! This series of videos has been great, but this one is my favorite so far. My money is on Portal Guns for the finale. Portal 2 in two weeks!