Here is the full list of all 29 Grand Theft Auto III – The Definitive Edition trophies - there are 11 bronze, 11 silver, 6 gold and 1 platinum.
Unlock all trophies.
Complete "The Exchange".
Achieve 100% completion.
Kill 25 gang members with melee weapons / fists.
Collect 100 hidden packages.
Use 20 police bribes.
Complete 20 unique jumps.
Use every weapon in the game at least once.
Complete Paramedic, Firefighter, Vigilante.
Complete every RC Toyz mission.
Complete "A Drop in the Ocean".
Complete the "Kingdom Come" mission.
Kill 15 criminals during one Vigilante mission.
Survive with less than 10 hp for 1 minute.
Earn a criminal rating of 2,500.
Complete "Last Requests".
Keep the two mafia members alive during "Triads and Tribulations".
Amass a fortune of $1,000,000.
Complete the "Turismo" race in under 180 seconds.
Take out Chunky Lee Chong with a car rigged with a bomb.
Use a coach to pick up all 8 prostitutes in the mission "The Fuzz Ball".
Deliver Mike Lips' car without a scratch on first attempt.
Crush a car at the junkyard.
Waste 100 gang members.
Complete 100 taxi fares.
Extinguish 15 fires during a single Fire Truck mission.
Complete Paramedic level 12.
Complete "Luigi's Girls".
Perform a perfect insane stunt.