|Hidden Egg bonuses:
Collect the indicated number of hidden Eggs found throughout the game to unlock the corresponding bonus:
1 Egg: Ad for the Eragon and Eldest books
When the final battle starts with Durza, hold L R and shoot Fire Arrows at him on his demonic steed. When he fires purple missiles at you, release R and keep L held. Press A rapidly, and Eragon will deflect the missiles back at Durza. However, when the Shade fires Fire Balls, you cannot deflect them; just dodge them. Continue this until he is dead. There is a secret egg in this level, but it is hard to find. Look for the telltale blue dot on the screen.