Bonus weapon
Successfully complete the game under any difficulty
setting. Save the game after the credits complete. Reload the
saved game to start with a new double dagger weapon in addition
to your original two weapons at their levels in the previous game.
Survival mode
Play level 1 and go through the subway when you need
to get both Legacy Drives for the Lightning Rod. When you get
out on the other side, go into the alley that has the fence with
a junkyard on the other side. Walk up to the fence. Press [Triangle]
when equipped with the Lightning Rod and quickly change to your
hands to grab on to the top of the fence. Jump over to the other
side, then go to the wall that has the ladder on it. Climb up
the ladder and get up to the top of the building. Once there,
you will find a piece of paper hovering above the ground. Walk
into that paper. A message stating that survival mode has been
unlocked will appear. Save the game, then enter the bonus option
at the main menu to access the new option.
3 minute battle mode
Play the China-town level after getting the Katar.
Climb up the Chinese house that has the huge flame on the porch.
When you are up there, someone will surprise attack. Kill him
and go to the opposite side of the part you climbed up to. Go
to the back of the house, but stay on the balcony. Jump to the
building on the far side (all the way down, as far as you can
see) and look around for another piece of paper. Walk into it,
and you will unlock the 3 minute battle mode option.
Boss battle mode
Play the Wisdom Headquarters level and proceed through
until you have activated the main elevator. Enter the library
on the unrestricted side and go upstairs. The door at the top
should now be open. Go upstairs and exit out onto the balcony.
Jump onto the chandelier, then go on the other balcony., Enter
the room on the other side and defeat both enemies. Get the piece
of paper and you will unlock the Boss battle mode option.