We then entered into a local bar when we then encountered a stranger who had a rather dangerous proposition; he wanted us to rearm and explode the unexploded nuclear bomb to take out Megaton. Our demo had us agreeing to handle this assignment (if you decline, the game will obviously move along another plot path). We then moved down to handle the task of arming the bomb again and then we left the town, where we encountered some resistance from a pack of mutants and one rather large super mutant that looked like it had taken a wrong turn from Epic Games' Gears of War. It took our using another weapon in the game, the mini-nuclear missile Fat Boy, to take him out. Finally our mysterious stranger appeared again to blow up Megaton in a massive nuclear mushroom cloud.

During the E3 demo we were reminded that this was going to be an RPG game rather than a first person shooter. There will be aspects of the game that will require you to do things that most shooters don't need. One such thing is the deterioration of weapons over time which means that if you want them to continue working you have to repair them. You can also improve the S.P.E.C.I.A.L. attributes of your character as you level up and learn to use new skills. The game will also have several endings (unlike Oblivion which didn't really have an ending) based on your actions and their consequences.