Eragon

Hidden egg bonuses:
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Submitted by: RM

Collect the hidden eggs found throughout the game to unlock the 
following bonuses. 

01 eggs - Ad for the Eragon and Eldest books
02 eggs - Edward John Speleers commentary
03 eggs - Design commentary
04 eggs - Art direction commentary
05 eggs - Birth Of A Game commentary
06 eggs - Concept art
07 eggs - Orchestra commentary
08 eggs - Saphira commentary
09 eggs - Sienna Guillory commentary
10 eggs - Character concept art
11 eggs - Concept art
12 eggs - Concept art
13 eggs - Robert Carlyle commentary
14 eggs - Sound Effects commentary
15 eggs - Garrett Hedlund commentary
16 eggs - Evolution Of Games commentary
17 eggs - Concept art
18 eggs - Throne Room bonus level