Acquire all database logs.
Unlocked: 08 Aug 2010 22:36:30
Obtain every weapon and weapon upgrade.
Unlocked: 08 Aug 2010 22:28:42
Collect all twelve hidden Yashichis - one from each of Area 01 - 12.
Unlocked: 06 Aug 2010 20:49:50
Obtain the Shin Guards, the Bulletproof Vest and the Helmet.
Unlocked: 18 Aug 2009 00:57:09
Clear Area 02 without touching a slime blob.
Unlocked: 31 May 2009 03:53:50
Block 100 projectiles using the claw.
Unlocked: 28 May 2009 21:29:59
Cat burglar
20Get to the boss of Area 05 within one minute and thirty seconds.
Unlocked: 28 May 2009 21:18:16
Clear any of Area 1 - 12 without firing your gun.
Unlocked: 28 May 2009 05:56:14
Kill all foot soldiers and enemy trucks on a Meet With Enemy sequence.
Unlocked: 27 May 2009 18:23:50
Acquire at least one star in each of the Challenge Rooms 1 - 56.
H4><0rz
10Hack through all the hacking games on Hard.
Clear the game on Super Hard.