During the event dedicated to the press for the launch of the Playstation 4, Sony among other things showed the trophy system on the new console.
The system will list every trophy that a player has earned and will sort them as common, rare, very rare or ultra rare. Trophies are still identified as bronze, silver, gold and platinum which indicate the difficulty. The Rarities, however, is a dynamic quality that will be calculated online through PlayStation users around the world. A trophy may be rare, or because it is difficult to obtain or because there are few players who have obtained, then the rarity may change over time.