Demo select mode:
Successfully complete the game team play mode under any difficulty setting without losing any matches. Save the game to unlock "Demo Select" at the options screen. This mode allows you to view the demos of any teams that were defeated.

Disable survivor mode:
Press Start on controller two at the mode selection screen.

Fight as Bosses:
Hold Start and press Up + Circle, Right + Square, Left + X, Down + Triangle at the character selection screen in any mode. Chizuru Kagura will be selectable to the right of Clark and Goenitz will be to the left of Athena.

God's Calibur team:
Enable "Fight as Bosses" code, then select Kagura, Kyo, and Iori

Goenitz team:
Enable "Fight as Bosses" code, then select Goenitz and any two characters (but not including Kagura).