Complete Chapter 8 on any difficulty setting

Kill the Slug Boss with more than 50% Shield strength remaining

Complete Chapter 7 on any difficulty setting

Spend 200,000 credits at the store

The player has completed the game without harvesting any Little Sisters

The player has become a Big Daddy

Acquire all upgrades for all weapons

Fully upgrade four weapons

Purchased every slot in all four Plasmid and Tonic tracks

Fully research the Little Sister

The player has taken a picture of Sander Cohen's corpse

The player has entered Sander Cohen's personal quarters

Fully research the Bouncer