In any Quark Vid-Comic either press Up(2), Down(2), Left, Right, Circle(2), Square or Up(2), Down(2), Left, Right, Circle, Square(2) to change Quark's outfit.

Unlock Ninjas and Pirates Mini-Game:
During gameplay in the Quark Vid Game instead of selecting a game press Square and enter '#MEGHAN#' (# indicates a space) as a password. Then press 'Start' to teleport to the Insomniac Museum to play a 2-Player game which featues pirates and nijas.

Unlock Bomb Mini-Game:
During gameplay in the Quark Vid Game instead of selecting a game press Square and enter '#YING#TZU#'(# indicates a space) as a password. Then press 'Start' to teleport to the Insomniac Museum to play a 4-Player game where you try to kill everyone by dropping bombs on them.

To reach the Insomniac Museum go to the teleporter on the Starship Phoenix if you have collected ALL the trophies or if you have some trophies missing go to the teleport pad which is hidden in the first part of Metropolis between the times of 3:00am and 3:59am to get there (set the system time on the PlayStation 2 to 3:00am. To do this easily). The Insomniac museum contains things like comics, pictures and concept art which didnt' make it into the game.

If you want more weapons in the game like the Lava Gun, the Bouncer and the Holoshield have a saved game from 'Ratchet and Clank: Going Commando' on your Memory Card and they will become available for you to buy.

Earn the following amount of 'Skill Points' to unlock the corresponding effect.

Unlock Big Head A.I.:
Earn 20 'Skill Points'.

Unlock Big Head Ratchet & Clank:
5 'Skill Points'.

Unlock Time Freeze:
10 'Skill Points'.

Unlock Secret Agent Clank:
15 'Skill Points'.

Unlock Ships to Ducks:
25 'Skill Points'.

Unlock Mirror Worlds:
30 'Skill Points'.


Unlock Wrench Replacement:
Enter the 'Demo' code.

Play as Dan:
When you have connected online press X at the select login username screen then select the 'Edit Profile' option. Hold L2 and press Left(4),Up, Right, Up, Left.

Play as Nefarious:
When you have connected online press X at the select login username screen then select the 'Edit Profile' option. Hold L2 and press Up(3), Left, Right, Up, Left, Up.

Squat Count:
When you have highlighted the 'Stats' option at the Main menu press Up, Down, Left, Right, Square. The number of times you have squatted on an opponent in multi-player mode will now appear on the stats screen.

Double Bladed Laser Weapon:
Press Circle, Square, Circle, Square, Up, Down, Left(2) when you have paused game play. The wrench will be replaced with a double bladed laser.

Sly 2: Band of Thieves demo:
Hold L1 + L2 + R1 + R2 at the title screen.


Unlock Cheat options:
At the indicated skill point level the following cheat options are unlocked.

Big Head Ratchet and Clank - 5 skill points
Time Freeze - 10 skill points
Secret Agent Clank - 15 skill points
Big Head A.I. - 20 skill points
Ships to Ducks - 25 skill points
Mirror Worlds - 30 skill points


Bonus skins:
In single player mode the following skins can be used.

Tuxedo Ratchet - 6 Titanium Bolts
Brainius - 6 Titanium Bolts
Bugnoid - 6 Titanium Bolts
Constructobot - 6 Titanium Bolts
Robo Rooster - 6 Titanium Bolts
Snowman Skin - 6 Titanium bolts
Trooper - 5 Titanium Bolts
Robo - 5 Titanium Bolts


Trophies:

Titanium Collector - Collect all the Titanium Bolts.
Annihilation Nation - Win all challenges in the Annihilation Nation.
Friends Of The Rangers - Successfully complete all the Ranger Battle missions.
Nano Finder - Get 200 Nanotech in challenge mode.
Omega Arsenal - Upgrade all weapons to their Omega versions.
Skill Master - Get all 30 Skill Points.