Literally the best game on the XBOX 360, hands down. Well worth the months that it will consume your life.
This game has, I don't even know how many weapons. There are so many different weapons that you can use, that you never get bored. Sure there are a few weapons that you're going to keep using all the time, but they are just as pleasing time after time to wield and destroy with. With a perfect combination of melee and firearms, the arsenal alone is worth buying the game for. You can even make your own weapons if you find the right schematics and pieces for them, expanding the game that much more!
Using your weapons has never been so pleasing in a game. With the exclusive Fallout 3 feature VATS (Vault Assisted Targeting System) killing your enemies has never been so much fun. Watching their bodies twist and explode under the might of your powerful onslaught from a third person close up camera perspective, all in slow motion, is basically the greatest thing on earth.
There are so many missions in this game that you can never really get bored. Countless side quests and main quests, along with all the DLC they keep putting out, makes this game an easy 100hr play through if you truly want to do everything. There's different ways to do all the missions, and sometimes you don't have to do them at all. There's skill sets that you can perfect in so many different categories, as well as very interesting perks that add their own flare to the way you play the game.
Nothing bad can be said about this game. Nobody ever stops talking about it, and they have good reason. Fallout 3 is the best game ever made. MUST BUY.