Enter the following as passwords to unlock these Digimon:
MINNYN Megagargomon
LINMON Imperialdramon
ROYBOY Imperialdramon paladin mode
QRIOUS Wargreymon
SERIUS Omnimon
KIMJOY Gallantmon
KENSAN Sakuyamon
Get Reapermon:
Beat the game once.
Get Blackwargreymon:
Beat the game once without losing a round. Blackwargreymon will challenge you. Beat him and then Reapermon without losing and you'll enable him as a playable character.
Get Impmon:
Beat the game with Guilmon, Terriermon and Renamon
Get Beelzemon:
Beat the game with Impmon
Get Metalgarurumon, Seraphimon, Stingmon and Magnadramon:
Beat the game with Gabumon, Patamon, Wormmon and Gatomon.
Younger Tai, Matt, T.K. and Kari:
Press and hold L1 and R1 while choosing their partners.
Get more Secret Digimon
Get Omnimon by beating the game with Agumon and Gabumon.
Get Impmon by beating the game with Guilmon, Terriermon, and Renamon.
Get Reapermon by beating the game
Get Blackwargreymon by beating him when he challenges you during the one player game.
Get Imperialdramon Palion mode by beatin the game with Wormon and Veemon
Get a special stage by beating the game.
Click here for screenshots of Digimon Rumble Arena.
