Complete one B.O.B. Turret sequence without being hurt.

Use The Missing Link’s Leap Attack for the first time.

Complete Mission on any difficulty: Withdrawal

Complete Mission on any difficulty: Discovery

Collect 25% of the journal intelligence found throughout the game.

Complete Mission on any difficulty: Sanctuary

Unlock every Trophy in the game.

Unlock the Bonus Art.

Unlock the extra Multiplayer Combat Maps.

Dig up all of the hidden bones using Dug.

Collect all of Carl's Mementos.

Find the hidden cave in "A Voice in the Mist."

Use Carl's House to float across all the chasms in the game.