You can earn trophies by succeeding in games that are designed to award trophies. Your earned trophy information is saved on your system.
Types of trophies
There are 4 grades of trophies, which vary by difficulty. The number of trophies available and ways to earn them vary from game to game.
Rarity of trophies
The rarity of each type of trophy, on a scale of 1 to 4, depends on how many players have earned that trophy. The fewer the players who have earned the trophy, the rarer the trophy is, from common to rare, very rare, and ultra rare.