Spring Break and XBox

Spring break at last! I will be going to Yorkshire on Thursday (returning Tuesday). I have completed my Xbox game, Lord of the Rings: Return of the King. The game was not that difficult; however, why is Gollum so tough? Shouldn't a few swings of the sword or an arrow in the back finish him off? With my second attempt, Frodo sent him spiralling into the fiery crater of the volcano. He had Sam's help, of course.