Introduction

Oh, sweet, sweet companion cube—how we missed you. You felt so good in our grasp and helped us in times of need when we felt trapped or stumped. You never talked back, abandoned us, or do any harm, except that one time you appeared out of nowhere, as a fallen angel would, and conked us over the head...but we forgive you. Because you're our little companion cube. xoxo

Creepy obsession with everyone's favorite inanimate mascot aside, Valve's brainchild makes a triumphant comeback in a higher dosage of disorientating, twisted fun to make sure we haven't gotten too comfortable with reality. With all-new challenges to overcome, IGN is here to put you ahead of the game, or on top. Or underneath. Well, wherever you decide to lay that portal, we're there—watching your back. Every moment of the way.

Inside this Portal: Still Alive strategy guide, you'll find:

• BASICS // If you're gonna get through this game, you've got to be able to tell up from down.
• WALKTHROUGH // The full walkthrough for the original game.
• CHALLENGE MAPS // As well as the walkthrough for the new Still Alive maps.
• ACHIEVEMENTS // What's that? Your e-peen is worth only 50 points? We'll help boost it a little here.

Guide by: Stephanie Lee
Original Portal walkthrough by: Mark Ryan Sallee