User Summary Digimon Story: Lost Evolution is the 5th Digimon title released for the DS. The game shares the mechanics of the other DS games in the franchise, having the player take the role of a human aiding the Digimon in the Digiworld. Changes from previous titles include a simplified experience system, the separation of Plant and Insect Digimon into two classes for a total of nine types, and the absence of DNA digivolution specific digimon.