Find them.
You have to do the skill points
In the later planets, you can shoot the things flying in the sky.
By earning all the skill points, the more skill points you have the more cheats you unlock.
You need 20 skill points. there isn't a special code
Go to the Start menu, Extras, and Skill Points. You're actually able to check your skill points even in regular mode.
Snipe 10 Tyhrranoids in towers on planet Tyhrranosis. it's as simple as that
infect enimies with infector
skill points are used to unlock costume like turning in to a snow man and turning into a cragmite that's all i can remember :). also you can get a tresure map(which shows where the skill points are) when you defeat captain slag
The more skill points you have, the more cheats you unlock.
Ratchet and clank, ratchet and clank going comando, ratchet and clank up your arsenal, ratchet: deadlocked, ratchet and clank size matters, ratchet and clank future: tools of destruction, secret aganf clank, ratchet and clank future: search for booty, and ratchet and clank future: a crack in time. I like ratchet: deadlocked the beSt
No. You will need the Action Replay Max. You should get many skill points to activate cheats in the Special menu.