Arron Sedillo challenge room: Press Right, Down, Left, Up, L1, R1, Triangle, Triangle, X, X, Start at the "Press Start" screen to unlock the fan made challenge room at the "Challenge Room" menu.
EuroGamer challenge room: Press Down, Up, Down, Up, Left, L1, Square, L1, Square, Triangle, Start at the "Press Start" screen to unlock the EuroGamer challenge room at the "Challenge Room" menu.
GamesRadar challenge room: Press R1, Triangle, Square, Square, Up, Down, L1, L1, Up, Down, Start at the "Press Start" screen to unlock the GamesRadar challenge room at the "Challenge Room" menu.
IGN challenge room: Press Up, Down, Triangle, Square, Square, Triangle, Down, Up, L1, L1, Start at the "Press Start" screen to unlock the IGN challenge room at the "Challenge Room" menu.
Achievements:
Bronze:
Meet with annihilation Objective: Kill all foot soldiers and enemy trucks on a Meet With Enemy sequence.
The Emperor�s New Clothes Objective: Obtain the Shin Guards, the Bulletproof Vest and the Helmet.
Faster Than a Speeding Bullet Objective: Block 100 projectiles using the claw.
Clean as a whistle Objective: Clear Area 02 without touching a slime blob.
Pacifist Pride Objective: Clearn any of Area 1 - 12 without firing your gun.
Cat burglar Objective: Get to the boss of Area 05 within one minute and thirty seconds.
H4><0rz Objective: Hack through all the hacking games on Hard.
Silver:
Private Arsenal Objective: Obtain every weapon and weapon upgrade.
One Dozen Yashichis Objective: Collect all twelve hidden Yashichis - one from each of Area 01 - 12.
Intel Collector Objective: Acquire all database logs.
Elite Commando Objective: Clear the game on Super Hard.
Gold:
A Real Challenge Objective: Acquire at least one star in each of the Challenge Rooms 1 - 56
