Eragon Cheats

Unlimited Fury Mode
Puase the game while in a level and hold L Button + L Trigger + R Button + R Trigger and press [X]x2, [B]x2.

Achievements
Complete each achievement to get the allotted gamerscore:

Carvahall - Hard (30): You have made it through the Carvahall level on Hard.
Carvahall - Normal (20): You have made it through the Carvahall level on Normal.
Daret Bridge - Hard (30): You have made it through the Daret Bridge level on Hard.
Daret Bridge - Normal (20): You have made it through the Daret Bridge level on Normal.
Daret Docks - Hard (30): You have made it through the Daret Docks level on Hard.
Daret Docks - Normal (20): You have made it through the Daret Docks level on Normal.
Daret Town - Hard (30): You have made it through the Daret Town level on Hard.
Daret Town - Normal (20): You have made it through the Daret Town level on Normal.
Gil'ead City - Hard (30): You have made it through the Gli'ead City level on Hard.
Gil'ead City - Normal (20): You have made it through the Gli'ead City level on Normal.
Gil'ead Keep - Hard (30): You have made it through the Gil'ead Keep level on Hard.
Gil'ead Keep - Normal (20): You have made it through the Gil'ead Keep level on Normal.
Ra'zac Chase - Hard (30): You have beaten the Ra'zac Chase level on Hard.
Ra'zac Chase - Normal (20): You have beaten the Ra'zac Chase level on Normal.
The Spine Mountains - Hard (30): You have made it through the Spine Mountains level on Hard.
The Spine Mountains - Normal (20): You have made it through the Spine Mountains level on Normal.
Trapped! - Hard (30): You have beaten the Trapped! level on Hard.
Trapped! - Normal (20): You have beaten the Trapped! level on Normal.