Skins

Skins were cheats that could give Ratchet, Clank, Qwark and Nefarious different outfits and even change them to look like another playable character. Skins could be bought using titanium bolts, Dread Points or gold bolts. Some skins could also be equipped in the cheats menu by acquiring a certain amount of skill points. There were also skins in the multiplayer.

Ratchet & Clank: Going Commando

 * Tuxedo Ratchet
 * Clown Ratchet
 * Beach Boy
 * Snow Dude

Ratchet

 * Current Armor
 * Old School Ratchet
 * Trooper
 * Brainius
 * Buginoid
 * Constructobot
 * Robo
 * Robo Rooster
 * Snowman Skin
 * Tuxedo Ratchet
 * Ninja (multiplayer only)
 * Bones (multiplayer only)
 * Blarg (multiplayer only)
 * Tyhrranoid (multiplayer only)
 * Thug (multiplayer only)
 * Skrunch (multiplayer only)
 * Bruiser (multiplayer only)
 * Hot Bot (multiplayer only)
 * Gladiola (multiplayer only)
 * Gray (multiplayer only)
 * Beach Bunny (multiplayer only)
 * Evil Clown (multiplayer only)
 * Dr. Nefarious (multiplayer only)
 * Dan (multiplayer only)
 * Santa Ratchet (Japan only)
 * Genome Ratchet (Japan only)
 * Pipo-Saru Ratchet (Japan only)
 * Saurus Ratchet (Japan only)

Clank

 * Secret Agent Clank

Digital Qwark

 * Tutu Qwark
 * Dark Qwark (glitch)

Ratchet: Deadlocked

 * Marauder
 * Avenger
 * Crusader
 * Liberator
 * Vindicator
 * Alpha Clank
 * "The Muscle"
 * Vernon
 * King Claude
 * LandShark
 * Squidzor
 * Kid Nova
 * Jak (co-op and multiplayer only)
 * W3RM
 * Starshield
 * Venus
 * Ninja Ratchet
 * Battle Bot (muliplayer only)
 * Dread Bot (muliplayer only)
 * Eviscerator (muliplayer only)
 * Shellshock (muliplayer only)
 * Mr. Sunshine (multiplayer only)
 * Ace (muliplayer only)
 * Reaper (muliplayer only)
 * Thriller (muliplayer only)
 * Renegade (multiplayer only)
 * Eugene (mutiplayer only)
 * Santa Ratchet (Japan only)
 * Genome Ratchet (Japan only)
 * Pipo-Saru Ratchet (Japan only)
 * Saurus Ratchet (Japan only)

Ratchet & Clank: Size Matters

 * Wear Current Armor
 * Tropical Vacation
 * Plumbering Pirate Captain
 * Ratchetzilla
 * Kanga-Ratchet (PS2 version only)
 * Hiro Ratchet (PS2 version only)
 * Snowman Skin (multiplayer only)
 * Hot Bot (multiplayer only)
 * Qwark (multiplayer only)
 * Ninja (multiplayer only)
 * Vacationing Robot (multiplayer only)
 * Nurse Bot (multiplayer only)
 * Otto (multiplayer only)
 * Dan (multiplayer only)

Clank

 * Suit
 * Cowboy
 * Klunk
 * 70s Clank
 * Cop Clank
 * Blender
 * Zoni

Ratchet

 * Prison Scrubs
 * Towel
 * Super Incognito (PSP only)
 * Tropical Vacation (PSP only)
 * Plumbering Pirate Captain (PSP only)
 * Ratchetzilla (PSP only)
 * Kung Fu Ratchet
 * Zombie Ratchet
 * Robo Ratchet (PSP only)
 * Dan

Qwark

 * Normal
 * Cowboy
 * Maid Qwark
 * Lucha Libra Qwark

Ratchet & Clank Future: Tools of Destruction

 * Ratchet
 * Dan Johnson
 * Snowman
 * Cragmite Skin
 * Rusty Pete
 * Cronk
 * Zephyr
 * Convict Ratchet
 * Mustachio Furioso
 * Clank (canceled from game)

Ratchet & Clank Future: A Crack in Time

 * Ratchet
 * Dan Johnson
 * Agorian
 * Bancho Ratchet (secret)
 * Mustachio Furioso
 * Nefarious
 * Alister Azimuth
 * Captain Ratchet (unlocked with Quest For Booty save file)

Ratchet

 * Trillium Armor
 * Mustachio Furioso
 * Convict Ratchet

Clank

 * Cowboy Clank
 * Secret Agent Clank

Jak

 * Freedom League Jak
 * Racer Jak
 * Barbarian Jak

Sly

 * Pirate Sly
 * Ninja Sly

Bentley

 * Classic Bentley
 * Future Bentley

Daxter

 * War Daxter
 * Pants Daxter

Ratchet:

 * Heck Fire Ratchet

Clank:

 * Fish Bowl Clank

Qwark:

 * Knight Qwark

Nefarious:

 * Lava Lamp Dr. Nefarious

Trivia

 * In an unlockable feature of Tools of Destruction called Tools of Production, an Insomniac Games worker hinted that a Clank suit for Ratchet, with Ratchet on his back, was canceled from Ratchet & Clank Future: Tools of Destruction. However he also hinted that this may be put in future games. Coincidentally, there's a cheat in Secret Agent Clank that makes Clank carry Ratchet on his back.
 * They have no effects on armor, health, or damage. They are just for a bit of fun.

Appearances

 * Ratchet & Clank: Going Commando (in the 'Cheats' menu only)
 * Ratchet & Clank: Up Your Arsenal
 * Ratchet: Deadlocked
 * Ratchet & Clank: Size Matters
 * Secret Agent Clank
 * Ratchet & Clank Future: Tools of Destruction
 * Ratchet & Clank Future: A Crack in Time
 * Ratchet & Clank: All 4 One