Here is the full list of all 30 Spyro 2: Ripto's Rage! trophies - there are 12 bronze, 12 silver, 5 gold and 1 platinum.
Collect all trophies in Spyro 2: Ripto's Rage
Don't get hit by Bob
Light 6 Gem Lamps in 15 seconds
Complete Crush's Dungeon without hitting any fodder
Complete Gulp's Overlook without harming fodder
Unlock the permanent Super Flame
Use all 3 types of power-ups in Ripto's Arena
Defeat all Draclets in one Superflight
Flame the Pigeons first in Metro Speedway
Defeat 5 Buggies while charging
Defeat the Snowmobiles before defeating a Hang Glider
Defeat the Ox without taking a hit
Charge through every Monkey in Mystic Marsh
Heat up the audience
Destroy every Roboshark
Headbutt every turtle in Turtle Soup challenges
Clean run in the trolley
Use a cannon to defeat a TNT thrower
Defeat every Earthshaper in Fracture Hills
Don't touch the lava in Skelos Badlands
Do not feed the Hungry Idol any red fish
Defeat every Robo Bee by spitting
Don't hit any Sheep in Cloud Temples
Complete the long glide to Orb in Autumn Plains
Headbash every rock in Winter Tundra
Don't touch the hazardous water in Shady Oasis
Steal a Popcorn Crystal from Hunter
Charge a Goat in Colossus
Complete Hunter's challenge
Defeat every robot in Hurricos