first complete all heroes mode chalenge then complete the mugenjo mode then complete the hidden mugenjo mode after a text will apear "all characters unlock naruto:ultimate ninja heroes 2:the phantom fortress completed"
unlock Lady Tsunade,Jiraiya,Orochimaru,Shizune,Kabuto,and Sasuke
Added 17 Sep 2008, ID #2401
First you go to heroes mode and select(The Finest Healers) then complete all 5 stages after that go to (The Mugenjo) there you go up all 100 floorsafter you completed a screen will come up and say Tsunade unlocked,Jiraiya unlocked, Orochimaru unlocked,Shizune unlocked,Kabuto unlocked,Sasuke unlocked now go have fun with your new characters
First, unlock Jiraiya, Tsunade and The Third Hokage. Then select the 3 when you selected "Custom Team". After doing so, press OK and you will hear a sound saying that it is one of the hidden teams. The team is powerful so use that as an advantage.
When I found that this there is a missing team, I found out that there is a secret team called "The Leaf's Greatest". Members for it are purely characters that needs to be unlocked. You need The Third Hokage, Tsunade and Jiraiya and select these 3 characters on Heroes Mode then you should unlock the team.