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