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