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Major Nelson challenge room
At the 'Push Begin' screen, press LB, X(3), Right, Down, LB, Left, Y, Down, Begin to unlock the Major Nelson challenge room at the 'Challenge Room' menu.
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Invincibility
While you are playing this game, press Guide to enter the Dashboard menu, then quickly push Back. Resume the game from the Dashboard menu. If done correctly, the game will be paused, but objects and people will still be in motion. Although you cannot move, you will not take damage.
Notice: This can be done in mid-swing to pass through harmful obstacles without taking damage.
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IGN challenge room
At the 'Push Begin' screen, press Up, Down, Y, X(2), Y, Down, Up, LB(2), Begin to unlock the IGN challenge room at the 'Challenge Room' menu.
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Super Hard mode
Successfully complete the game to unlock the Super Hard difficulty.
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Achievements
Do the following things to obtain the corresponding Gamerscore points:
| 5 Points |
| Intel Acquireor | Acquire all database logs. | | | Elite Commando | Clear the game on Super Hard. | | | 10 Points | | H4><0rz | Hack through all the hacking games on Hard Difficult Level. | | | 20 Points | | Meet with annihilation | Kill all foot soldiers and enemy trucks on a Meet With Enemy sequence. | | | Private Arsenal | Acquire every weapon and weapon upgrade. | | | Cat burglar | Get to the boss of Area 05 within one minute and thirty seconds. | | | Pacifist Pride | Clear any of Area 1 - 12 without firing your gun. | | | One Dozen Yashichis | Acquire all twelve hidden Yashichis - one from each of Area 01 to 12. | | | Faster Than a Speeding Bullet | Block 100 projectiles using the claw. | | | A Real Challenge | Acquire at least one star in each of the Challenge Rooms 1 to 56. | | | Clean as a whistle | Clear Area 02 without touching a slime blob. | | | The Emperor's New Clothes | Acquire the Shin Guards, the Bulletproof Vest and the Helmet. | | | | | | | | | | | | | |
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EuroGamer challenge room
At the 'Push Begin' screen, press Down, Up, Down, Up, Left, LB, X, LB, X, Y, Begin to unlock the EuroGamer challenge room at the 'Challenge Room' menu.
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GamesRadar challenge room
At the 'Push Begin' screen, press RB, Y, X(2), Up, Down, LB(2), Up, Down, Begin to unlock the GamesRadar challenge room at the 'Challenge Room' menu.
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Arron Sedillo challenge room
At the 'Push Begin' screen, press Right, Down, Left, Up, LB, RB, Y(2), A(2), Begin to unlock the fan made challenge room at the 'Challenge Room' menu.
