Today Bethesda released walkthrough videos for their upcoming action RPG, Fallout 3. Joystiq has posted the trailers, which contain gameplay footage from the starting area and the city "Megaton," as well as combat scenarios and other features. One fight showcases the targeting system, which they demonstrate by targeting and then shooting off an enemy's arm. Another shows off the ability to create and use improvised weapons. Also shown are the lock picking and computer hacking mini-games, pickpocketing (or depositing something nasty in somebody's pocket), and general nuclear mayhem. Further detail is available at Shacknews.