Glitch.
Do they really die by bowing their heads? *coughs* Anyway the glitch is when you pick the 50 exp. after fighting the first orc. Go down. There are two entrances, one small and the other large. Go to the large one, if there is still no dead end go down more then pick the 50 exp. You must have noticed the word exp. in the other side. (If not stop reading) Now go back and go to that place. Then go near it. You must have noticed your exp. go up thus leveling you every second, but of course grows slower after each level. Thus making the game way easy for you. Anyways it's a boring game and the end is just a text saying... "You have cleansed the caves of mordor of the orc...bla...bla...bla... and you may now wear your pink bunny slippers without anyone laughing at you." Then of course comes the credits.