Solid Snake is back in a teaser for the eagerly anticipated Metal Gear Solid 2: Sons of Liberty. And IGN Guides has a full dissection of everything in the demo.

This guide includes a detailed walkthrough, weapons description, and videos of all the fun stuff you can do with this incredibly deep stealth adventure. The best part? It's free when you register, a process that will only take a few moments... and cost you nothing whatsoever.

Anytime you find yourself hanging from a bar or edge, go into first person mode. By pressing R2 and L2 at the same time, Snake will do a pull-up. Do 100 of them and Octacon will tell you that your Grip Strength has been improved.

Even the stealthy sometimes get caught. When this happens, a blue exclamation point will appear above the guard's head. If you shoot the blue punctuation mark, you'll knock the guard out temporarily.