Complete the following tasks to unlock Vita trophy rewards.

Trophy	How to unlock
Baby, it's cold outside (Bronze)	Get all Cold Island Monsters.
Build Me Up Buttercup (Bronze)	Get all Plant Island monsters.
Clean Sweep (Bronze)	Clear all Obstacles on an Island.
Cold as Ice (Bronze)	Get Cold Island.
Down to Earth (Bronze)	Get Earth Island.
Go into the Water (Bronze)	Get all Water Island Monsters.
Gone Platinum (Bronze)	Get a level 15 Monster.
Happy When it Rains (Bronze)	Get Water Island.
How to Make a Monster (Bronze)	Breed a monster.
In the Air (Bronze)	Get all Air Island Monsters.
In the Air Tonight (Bronze)	Get Air Island.
Mommy's Little Monster (Bronze)	Get a monster 100% happy.
My Beloved Monster (Bronze)	Get a Monster.
Pump up the Volume (Bronze)	Reach level 10.
Rare Monster (Bronze)	Get a 4 element monster.
Triple Trouble (Bronze)	Get 3 element Monster.
We'll Inherit the Earth (Bronze)	Get all Earth Island Monsters.