Trophies
There are 38 Bronze Trophies, 10 Silver Trophies, 2 Gold Trophies, and 1 Platinum Trophy.

A Better Person (Bronze): Buy your first Upgrade from the Upgrade Store.
And Boom Goes the Dynamite (Bronze): Complete all instances of Heli Assault.
Bo-Duke-En (Bronze): Hijack 50 vehicles - Dukes style.
Bright Lights, Big City (Gold): Complete all City Takeover gameplay in the entire city of Steelport.
Cowboy Up (Bronze): Fully upgrade one Weapon in each slot.
Dead Presidents (Bronze): Complete 'When Good Heists...'.
Double Dose of Pimping (Bronze): Complete all instances of Snatch.
Everything is Permitted (Bronze): Kill all of the hitman Assassination targets.
Fence Killa 2011 (Bronze): Complete all instances of Mayhem.
Flash the Pan (Bronze): Destroy all Gang Operations in Steelport.
Gangstas... In Space! (Silver): Complete Act 3 in another way.
Gellin' Like Magellan (Silver): Explore every hood in Steelport.
Gender Equality (Bronze): Play for at least 2 hours as a male character AND 2 hours as a female character.
Getting the Goods (Bronze): Find 25% of all Collectibles.
Go Into the Light (Bronze): Complete all instances of Guardian Angel.
Gotta Break Em In (Bronze): Complete 'The Ho Boat'.
Hack the Planet (Silver): Complete all City Takeover gameplay in the Stanfield district.
Hanging With Mr. Pierce (Silver): Complete all City Takeover gameplay in the Downtown district.
Haters Gonna Hate (Bronze): Kill 1000 Gang Members.
Have A Reality Climax (Bronze): Complete all instances of Professor Genki's Super Ethical Reality Climax.
Hi-Jack It (Bronze): Steal and deliver all Vehicle Theft targets.
I Heart Nyte Blayde (Bronze): Complete 'STAG Party'.
Jumped In (Bronze): Create and share a character online.
kill-deckers.exe (Bronze): Complete 'http://deckers.die'.
Kingpin (Platinum): Unlock all Trophies in Saints Row: The Third.
Kuh, Boom. (Bronze): Complete Act 1 in another way.
Life of the Party (Silver): Find 100% of all Collectibles.
Love/Hate Relationship (Bronze): Taunt AND/OR Compliment 50 gang members.
Mourning Stars (Silver): Complete all City Takeover gameplay in the New Colvin district.
Mr. Fury Would Be Proud (Silver): Complete Act 3 in one way.
Murderbrawl 31 (Bronze): Complete 'Murderbrawl XXXI'.
Once Bitten... Braaaaaaains (Bronze): Complete 'Zombie Attack'.
Opulence, You Has It (Bronze): Complete 'Party Time'.
Ouch. (Bronze): Complete all instances of Insurance Fraud.
Ow My Balls! (Bronze): Do your first nutshot AND testicle assault.
Pimped Out Pad (Bronze): Upgrade one Stronghold to its full glory.
Porkchop Sandwiches (Bronze): Complete all instances of Trail Blazing.
Shake and Bake (Bronze): Complete your first Challenge.
Stay Classy Steelport (Bronze): Kill 25 Gang Members each with 'the Penetrator' AND the Fart in a Jar.
Tank You Very Much (Bronze): Complete all instances of Tank Mayhem.
The American Dream (Bronze): Customize 10 vehicles.
The Welcome Wagon (Bronze): Complete 'I'm Free - Free Falling'.
Third and 30 (Gold): Spend over 30 hours in Steelport.
Titanic Effort (Silver): Complete Act 2.
Tower Defense (Bronze): Complete Act 1 in one way.
Tune In, Drop Off (Bronze): Complete all instances of Trafficking.
We're Takin' Over (Bronze): Complete 'We've Only Just Begun'.
Who Loves Ya Baby (Bronze): Kill 50 brutes.
You're My Hero! (Silver): Complete ALL Challenges.
You're the Best... (Silver): Complete all City Takeover gameplay in the Carver Island district.
Your Backseat Smells Funny (Bronze): Complete all instances of Escort.