Bronze:

Basic Combination
Objective: Tape up a bottle.

Blackout
Objective: Finish the episode without skipping any sequence.

Bloody Mary
Objective: Bandage 5 deep bleeding wounds.

Burning Root
Objective: Burn a root of evil.

Car Thievery
Objective: Unlock a car door after breaking the window.

Cocoon
Objective: Burn a cocoon.

Countdown to Death
Objective: Stop your wound from bleeding.

Demolition Expert
Objective: Build the most destructive weapon.

Fight back and loss
Objective: Finish the episode without skipping any sequence.

Fire Bullets
Objective: Make a fire bullet by pouring flammable liquid on it.

Fisherman's Foe
Objective: Shoot a goldfish.

Fissure
Objective: Burn a fissure.

Free Gasoline
Objective: Pierce a car gas tank and fill a bottle with the fuel.

Goal!
Objective: Kick 10 Ratz.

Hidden Cave
Objective: Discover the secret of Central Park.

Meet Again
Objective: Meet Theophile in room 943.

Never Leave a Key Here
Objective: Find a car key in the sun visor.

Not alone anymore
Objective: Finish the episode without skipping any sequence.

Nuke
Objective: Kill 3 Humanz at once.

Painful answers
Objective: Finish the episode without skipping any sequence.

Purification by Fire
Objective: Destroy the Vampirz' nest.

Questions
Objective: Finish the episode without skipping any sequence.

Revive
Objective: Revive Sarah.

Stuntman
Objective: Jump across the gap using the tow truck.

The 10 Mile Race
Objective: Drive at least 10 miles with a vehicle.

The Air Bomb
Objective: Throw a bottle filled with flammable liquid and shoot it mid-air.

The Biggest of All
Objective: Beat the Museum Monster.

The Blind Man
Objective: Finish the 'Wake Up' sequence without blinking.

The Glowstick Bomb
Objective: Combine a taped bottle filled with flammable content or a spray with a glowstick.

The light bringer
Objective: Finish the episode without skipping any sequence.

The Molotov Cocktail
Objective: Insert a wick into a bottle with flammable content.

The Path of Darkness
Objective: Kill Sarah.

The path of light
Objective: Finish the episode without skipping any sequence.

The Path of Light
Objective: Don't Kill Sarah.

The Sharpshooter
Objective: Finish off a Humanz by shooting fire bullets at it's fissure.

The Smart Fighter
Objective: Kill any Humanz with the 'spray + lighter' combination.

The Sticky Bomb
Objective: Take a bottle filled with flammable content or a spray and combine it with an adhesive.

The truth
Objective: Finish the episode without skipping any sequence.

Toasted Eggs
Objective: Burn a Ratz nest.

Unlimited Offer
Objective: Call all contacts in your address book.

Useless!
Objective: Combine an empty taped bottle with a wick and an emergency flare.

Vampirz
Objective: Burn one of the Vampirz.

Wired
Objective: Hotwire a car.

Silver:

Cockpit Addict
Objective: Drive all the way down 59th street in Cockpit view.

Flaming Roots
Objective: Burn half of the roots of evil.

Handyman Carnby
Objective: Make all possible combinations in the inventory.

Gold:

A Day in Central Park
Objective: Complete the game.

Blazing Roots
Objective: Burn all roots of evil.

Eradication
Objective: Kill 100 Humanz.

Platinum:

100% Complete
Objective: Unlock the platinum trophy by unlocking all other trophies.