Unlockable
Blackagumon/Blackwargreymon: Term the game twice with two different characters.
Extra Agumon: Term the game with gabumon.
Gabumon/Omnimon: Term the game with all Digimon, including Lopmon and Blackagumon.
Impmon: The game ends having defeated Impmon and with 300 or more D-Spirit.
Lopmon/kerpymon: ends the game with 3 digimon different from those you used to unlock Blackagumon.