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Secret achievements for BioShock

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This page contains BioShock Unlockables for Xbox 360 called "Secret achievements" and has been posted or updated on Jun 25, 2009 by Dead Star.

Boxshot & Details
BioShock
  • Developer: Irrational Games
  • Publisher: 2k Games
  • Genre: Action Shooter First-Person
  • Release: Aug 21, 2007
  • ESRB: Mature
Unlockables

Secret achievements

Complete one of the following achievements to collect their Xbox Gamerscore points:

Unlockable:How to Unlock:
Became a Big Daddy (30 GP)Become a Big Daddy.
Broke Fontaine's Mind Control (30 GP)Break Fontaine's mind control.
Completed Cohen's Masterpiece (30 GP)Complete Sander Cohen's great masterpiece.
Defeated Andrew Ryan (30 GP)Defeate Andrew Ryan.
Defeated Atlas (100 GP)Defeat Atlas.
Defeated Dr. Steinman (15 GP)Defeat the crazed Dr. Steinman.
Defeated Peach Wilkins (15 GP)Defeat Peach Wilkins.
Found Cohen's Room (10 GP)Enter Sander Cohen's personal quarters.
Irony (10 GP)Take a picture of Sander Cohen's corpse.
Restored the Forest (15 GP)Restore the forests of Arcadia.

From: Dead Star, Jun 25, 2009
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