This page contains GRID Unlockables for Xbox 360 called "Ninja Difficulty" and has been posted or updated on Jun 10, 2008 by iamkingcheats. Let us know what you think of this Unlockable by thumbs voting.
- Developer: Codemasters
- Publisher: Codemasters
- Genre: Driving Racing
- Release: Jun 3, 2008
- ESRB: Everyone
To unlock Ninja Difficulty, get every trophy and complete every head-to-head race in Grid World
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