PSP Game Digimon World Re:Digitize (Japan)

In the game, the player follows and controls "Taiga", a 16-year-old male protagonist who is transported to the digital world of Digimon, which in his universe is merely an online game; similar in concept to Digimon World. In the universe of Digimon, people raise creatures collectively referred to as Digimon, similar in concept to Tamagotchi. Players raise the digimon through stages of growth that determine his personality, the five stages being "Baby", "Child", "Adult", "Perfect" and "Ultimate". Digimon evolve over time by gaining stats and other factors. Digimon can get hungry, sick, injured or die and need care to recover. The game has over 10,000 accessories to collect and equip on their digimon, which alter the character's in-game appearance, such as goggles, or an afro.​

Taiga is the main protagonist of the game. His Digimon partner is Agumon. Nicolai Petrov is Taiga's best friend. His father works in GIGO company. His Digimon partner is Gaomon. Akiho Rindo is a mysterious girl that follows Taiga around. Her Digimon partner is Biyomon. Mikagura Mirei is the girl who sends an email to the Digital World. Her Digimon partners are Angewomon and LadyDevimon. Yuya Kuga is the heir of GIGO company. His Digimon partner is BlackWarGreymon X. Rina Shinomiya is a new tamer who only appears in the Decode 3DS version of the game. Her Digimon partner is Veemon.​

The game also contains a number of guest characters from other games, including Lili from the Tekken series, Taichi Yagami, Sora Takenouchi, and Yamato Ishida from Digimon Adventure, and Takato Matsuda from Digimon Tamers. These character primarily appear in the wireless battles.​