Spanning over a dozen stages with a storyline that parallels the cartoon, players can team up with more than 140 Digimon characters to battle against evil and save the world. As gamers increase in skill and find new items, so too can their Digimon be upgraded through leveling up and "Digivolution." With over 250 items to collect and complex puzzles to solve, Digimon World Data Squad represents the evolution of the common RPG on the PS2.