Gib 50 enemies.

In Wages of SiN, grab at least 17 bags of Cheesy Poofs in a single playthrough.

Land 5 headshot kills with the Sniper Rifle from more than 25 meters away.

Complete the second episode of SiN by destroying all of the bio-mechanical labs.

In Wages of SiN, navigate the shipyard (either day or night) without triggering the alarms.

In SiN, pick up all three parts to the Pulse Rifle.

Stop Elexis' operation by finishing the sixth episode of SiN and killing the Thrall Master.

In SiN, find something to help fund the cops in the bank.

In SiN, jump down the inconspicuous whirlpool in the sewers.

In SiN, destroy the attack helicopter on the dam.

Destroy 20 breakable crates containing items.

In Wages of SiN, don't destroy any art in the museum.

Discover why the mutants are back by finishing Wages of SiN Episode 1.

In SiN, discover the Rodentia of abnormal dimensions lurking in the subway system.

Don't listen to Dr. Lansing and finish Wages of SiN Episode 2.

After listening to Dr. Lansing, finish Wages of SiN Episode 2.

Punch the lights out of 30 enemies.

In SiN, access & shut down the recycling facility.

In SiN, don't get spotted infiltrating the SinTEK Chemical Laboratory.

In Wages of SiN, find all four calendars.

In Wages of SiN, discover the secret weather manipulation lab.

In Wages of SiN, recover the Paradox Diamond.

In Wages of SiN, find the mysterious device lurking in the abandoned buildings.

Complete the first episode of SiN by stopping Mancini for good.

Complete the fourth episode of SiN by preventing contamination of the water supply.

In SiN, find the envelope in the warehouse that explains everything... or does it?

In SiN, find 5 secrets.

In SiN, destroy all 14 chemical drums on the dam.

Complete the third episode of SiN by aborting the missile launch.

Stop Manero's plans by finishing Wages of SiN Episode 3.

In Wages of SiN, discover Manero's pitch to protect the city in his penthouse.

Complete the fifth episode of SiN by reaching the station at the end of the Mountain Gorge.