Eragon - Platform: Nintendo DS

Dragon Rider Clash mini-game: 
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Fly through at least 30 rings during dragon flight missions.

Mind Touch mini-game:
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Unlocked after Eragon's first discussion with Saphira by drawing 
symbols on the touch screen.

Defeating Durza:
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When fighting Durza for the second time, use the stylus to move 
around when you are fired upon. When Durza is in front of you, 
do not stop pressing L or R. Durza cannot shoot back while getting hit.