Ratchet & Clank: Up Your Arsenal Cheats
To get to this special room, head to Metropolis, enter the first building and go left. Jump to the next one and look to the left to find a portal. The portal is only there between 3am and 4am, so mess with your system clock or just make some coffee.
Dual Ninja Sword:
Pause gameplay then enter Circle, Square, Circle, Square, Up, Down, Left, Left.
Have a savegame from the first Ratchet and Clank on your memory card. Select "Gadgetron Employee Discount" to recieve a 10% discount on...
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Unlock Squat Stats
At the main online menu highlight "Stats" and press:
Up, Down, Left, Right, Square - Unlock Squat Stats
Pirate Vs Ninja 2 player fight
When picking what level to do in the Quark Vid comics, press Square instead.
A password menu should pop up. Enter this code.
_MEGHAN_ - Pirate vs Ninja
Qwark in a tu tu
During any qwark vidcomic, enter the following:
Up, Up, Down, Down, Left, Right, Circle, Square, Square - Qwark in a tu tu