Complete a single street crime case.
Respond to 20 street crime cases.
Complete all street crime cases.
Reach 100% Game Complete.
Complete a story case with a five star rating.
Complete all story cases with a five star rating.
Achieve maximum rank.
Stop a fleeing suspect with a warning shot as an LAPD Detective.
Chase down and tackle a fleeing suspect on foot as an LAPD Detective.
Disable a suspect vehicle with help from your partner.
Use evidence to prove a lie as an LAPD Detective or Investigator.
Find and inspect a clue as an LAPD Detective or Investigator.
Clear a case finding every clue as an LAPD Detective or Investigator.
Find and solve an inspection puzzle.
Keep the needle above 80mph for more than ten seconds while driving.
Drive more than 194.7 miles.
Bring down a total of 30 bad guys with head shots.
Shoot and kill a total of 100 bad guys.
Kill at least one bad guy with every gun.
Find and inspect 95% of all clues.
Tail a suspect without being spotted, in a single case.
Correctly branch every question in every interview in a single story case.
Use four intuition points in a single interview session, correctly branching each question.
Discover all landmark locations around the city.
Rack up $47,000 in penalties during a single story case.
Follow Candy Edwards without using cover or incognito, except when starting or picking up the tail.
Complete a brawl without losing your hat as an LAPD Detective or Investigator.
Drive 5 different vehicles.
Drive 40 different vehicles.
Drive every vehicle in the city.
Find and inspect all gold film reels.
Complete 'A Slip of the Tongue'.
Complete 'The Naked City'.
Complete 'Nicholson Electroplating'.
Complete 'Reefer Madness'.
Pass the toilet paper to the scientist in need.
Perform surgical caffeine extraction from 20 machines.
Kill 10 Airborne Headcrabs using the Shotgun.
Kill 20 enemies with the Hivehand.
Ruin the microwave casserole.
Kill an Assassin with the .357 Magnum.
Kill 10 enemies with a reprogrammed Sentry.
Conduct all of the questionable research experiments.
Kill 10 enemies with Snarks.
Headshot 20 enemies with the .357 magnum.
Drown in Lambda Core's coolant.
Kill a Headcrab using fire.
Kill a Marine with their own grenade.
Kill 5 enemies with one grenade.
Kill an Icthyosaur with either the Tau or Gluon.
Use the alternate path in Office Complex.
Use an entire clip of Gluon ammo in one continuous shot.
Get overtaken by a Headcrab's ample anterior.
Interfere with the alarm and laptop in Anomalous Materials.
Overcharge it anyway.
Send the Hidden Hat to Xen.
Kill a Barnacle with a Satchel.
Refuse to insert the specimen into the Anti-Mass Spectrometer.
Help the Barnacle and Headcrab find true love.
Get killed by your own Snarks.
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