Retrieved Shock Jockey.

In the Main Campaign, killed 25 enemies with the Broadsider Pistol.

In the Main Campaign, completed Lighthouse.

Finished the game on the hardest difficulty level.

Completed all research on every subject in Rapture.

Got through a Gather with no damage and no one getting to the Little Sister.

Finished the game without using Vita-Chambers.

Headed to the surface on the side of Sinclair's escape pod.

Killed 50 enemies using only hacked Security.

Reunited with your original Little Sister.

Gained access to Lamb's stronghold.

Fully upgraded one Plasmid to the Level 3 version.

Gathered 600 ADAM with Little Sisters.