Successfully complete one of the following tasks to get a trophy:

Basic 3 (Bronze Trophy): Unlock 3 skins in Challenge Mode "Basic". 
Basic 10 (Bronze Trophy): Unlock 10 skins in Challenge Mode "Basic". 
Advance 10 (Bronze Trophy): Unlock 10 skins in Challenge Mode "Advance". 
Time Attack 50 (Bronze Trophy): Score 50 points in Time Attack Mode 60sec. 
Mission Beginner (Bronze Trophy): Clear Mission Mode Easy. 
Puzzle Beginner (Bronze Trophy): Clear Puzzle Mode Easy. 
Time Attack 210 (Silver Trophy): Score 210 points in Time Attack Mode 180sec. 
Dig Down Master (Silver Trophy): Clear all stages in Dig Down Mode. 
Mission Master (Silver Trophy): Clear Mission Mode Hard. 
Puzzle Master (Silver Trophy): Clear Puzzle Mode Hard. 
Skin Master (Gold Trophy): Unlock all skins.