Defend a human colony from attack

Unlock 15 new Mass Effect 2 codex entries

Complete any research project in the Normandy's laboratory

Perform 30 headshot kills with any weapon on humanoid targets

Make 20 enemies scream as they fall or are set on fire

Beat the fourth boss.

Choose any character and reach Turtle Village (Stage 3) without dying once.

Personalize your armor

Beat the first boss without dying.

Wield the knife in single player or co-op mode.

Beat the game in local Co-op mode.

Play as every character.