Secret Agent Clank Cheats for PSP

Enter the 'Special' menu with any character when you have a saved game file from 'Ratchet And Clank: Size Matters' on your memory stick. Then select the 'Check Size Matters Save' option go to the 'Skins' menu to access new free skins.

Pause the game and press Left(2), Right, Down, Up(2), X.

Use your blaster until it jams. Then use punches not the vaccum thingy.

The following features in the game become unlocked when you spend the indicated number of Skill Points.
Unlock Big Headed Clank:
4 Skill Points
Unlock Big Headed Ratchet:
8 Skill Points
Unlock Mirrored Levels:
12 Skill Points
Unlock Weapon Switching:
16 Skill Points
Unlock Big Headed Enemies:
20 Skill Points
Unlock Super Bloom:
24 Skill Points
Unlock Old Timey:
26 Skill Points
Unlock Expat Exchange:
28 Skill Points
Unlock Bolt Confusion:
32 Skill Points
Unlock Pumpkin Heads:
40 Skill Points
Unlock Snowman Heads:
45 Skill Points
Unlock Kapow:
50 Skill Points
Unlock Ratchet Pack:
65 Skill Points
Unlock Hardcore Mode:
65 Skill Points

Keykard #1:on asinanica where the cop cars pop up the second time and after you get on top of the first cop car look down on the left side and you will see the (RED) KEY
keykard #2:ok the second keykard is on for sprocket go to the gadge bot challenge to open the vault to save clank wen you get to the third troly don't go foward go backward and you will see the(BLUE) KEY
keykard #3:now the third key kard on quarks fourth chapter wen you rescued the second space nuns go to the third space nuns wen you get to the end where that alien is shooting at you there are space nuns behind him look at the center of the stage hoot at it while jumping towards the center you will fly and you will get the (YELLOW) KEY.
PS U NEED ALL ALIEN CODES TO MAKE THE KEYKARDS USEFUL

This is done by going to the Treehouse and pressing Up, Up, Down, Down, Left, Right, Left, Right at the area where you find the Chalice.

Using any character go to the 'Special' menu and select the 'Check Size Matters Save' option. If the game detects that you have a 'Ratchet & Clank: Size Matters' save file on your memory stick several free skins which won't cost you any Titanium Bolts will become unlocked and accessible at the 'Skins' menu.

If you need to get about without being seen then during gameplay press Left(2), Right, Down, Up(2), X to unlock the secret disguise.