If you have the razor claws you can climb walls by crouching in front of one and doing a high jump then pressing O at the top of the jump to attack the wall, and before you fall back down do another high jump in mid air. Just keep repeating this and you can get pretty far before running out of ammo. Some pretty awesome glitches with this, but the rest is up to you. Good luck.
Secret Agent Clank RETURNS!Added 10 Jan 2008, ID #391
Greetings inferior beings of Polaris. In the Clank section of the IRIS, on Kreeli Comet, You can find a secret hexagonal space just after the VERY first Zoni charge-up area. Standing on the space causes a Gagetron Helpdesk message to appear, and it gives you a code. Please note, this code is for the upcoming PSP game, Secret Agent Clank. The code is: left, left, right, up, down, down, X.
Unlock RYNO IV - Ultimate WeaponAdded 31 Oct 2007, ID #260
The RYNO (which stands for 'Rip Ya a New One') and if you have this weapon the game becomes incredibly easy. If you have ALL the Raritanium mods at v5 the Omega can be bought for 50,000,000. At level 10 the RYNO IV has 900 rounds with 5141 damage each.
Unlock RYNO IV This weapon is unlocked by collecting each of the holo-plans.
Unlock RYNO 4Ever: Play in challenge mode and fully upgrade the RYNO IV. Then purchase RNYO 4Ever from any weapons merchant for 50,000,000 bolts.
This mode is unlocked when you have beaten the game. In Challenge mode you play through the game against harder enemies but retain ALL your weapons, experience points and bolts from the previous journey.