Here is the full list of all 29 Grand Theft Auto III trophies - there are 11 bronze, 12 silver, 5 gold and 1 platinum.
Unlock all trophies.
Achieve 100% completion.
Complete Paramedic level 12.
Complete "Patriot Playground", "A Ride in the Park", "Multi-Story Mayhem", and "Gripped!" missions.
Get busted 20 times.
Blow up 2,000 cars.
Earn a criminal rating of 5,000 or higher.
Complete 20 unique jumps.
Kill 20 criminals during one Vigilante mission.
Complete 100 taxi fares.
Pass all 20 Rampages.
Complete the Portland Docks and Shoreside Vale import/export car lists.
Waste 1,000 people.
Destroy five helicopters.
Earn a criminal rating of 2,500.
Complete every RC Toyz mission.
Complete "The Exchange".
Collect 100 hidden packages.
Complete "A Drop in the Ocean".
Amass a fortune of $1,000,000.
Deliver all emergency vehicles to the crane at the Portland Docks.
Complete the "Kingdom Come" mission.
Waste 100 gang members.
Complete "Last Requests".
Extinguish 20 fires during a single Fire Truck mission.
Complete the "Turismo" race in under 180 seconds.
Perform a perfect insane stunt.
Crush a car at the junkyard.
Complete "Luigi's Girls".