Chalice of power:
     Press  Up,  Up,  Down, Down, Left, Right, Left, Right during game
play as Ratchet, Qwark, Gadgetbots, and Clank in any planet to restore
your health. Note: The code only works once per visit to a location.

Zoni skin:
     Pause game play, then press Left, Left, Right, Down, Up, Up, X.



"Size Matters" Ratchet Skins
     First,  go  to the "Special" menu with any character. Then choose 
"Check  Size Matters Save". If the game detects a Size Matters save on 
your  memory  stick,  several  free  skins  will  be unlocked, and are 
accessible via the "Skins" menu. They will cost you no Titanium Bolts. 



Cheats
     Use Skill Points to get these cheats.

Big Headed Clank:        4 Skill Points

Big Headed Enemies:      20 Skill Points

Big Headed Ratchet:      8 Skill Points

Bolt Confusion:          32 Skill Points

Expat Exchange:          28 Skill Points

Hardcore Mode:           65 Skill Points

Kapow:                   50 Skill Points

Mirrored Levels:         12 Skill Points

Old Timey:               26 Skill Points

Pumpkin Heads:           40 Skill Points

Ratchet Pack:            65 Skill Points

Snowman Heads:           45 Skill Points

Super Bloom:             24 Skill Points

Weapon Switching:        16 Skill Points