In Crash of the Titans, concept art can be unlocked by obtaining a chapter's Voodoo doll. There's a total of 20 concept art collections in the game.
Episode 1: A New Hop[]
Wumpa Island, and what appears to be an early version of the Mojo Temple
Prototype Crash and Coco houses
Coco expression sheet
A slide, possibly scrapped
(Above) A bridge. (Bottom) One of the bridge's platforms
A watermelon and a kind of tiki, possibly scrapped
Arena where Spike lives
Episode 2: A Succumbing to Age Story[]
Crash
A scrapped area
A bridge. This is found in-game during "Episode 3: A Zero's Journey"
Illustration of the target range
Snipe
Episode 3: A Zero's Journey[]
Crash and a butterfly
Illustration of the beginning of the level. The mushrooms do not appear in the final game
Early design for the Mojo Temple
Another early design for the Mojo Temple
The Mojo Temple, viewed from afar
Picture of the Mojo Temple without the Mojo Vac
Another illustration of the Mojo Temple. The rocket ship does not appear in-game
Picture of the temple where Goar is found
Picture of the temple where Snipe is found
A cut titan
Episode 4: The Temple of Zoom[]
Early design of the temple interior
A slide in the green chamber
Unused mask designs
Unused tribal design
Early design for the orange chamber
Early design for the temple entrance
(Left) Yuktopus. (Right) The Mojo Vac
Early design for the Mojo Vac
Early design of the Yuktopus's boss arena
Episode 5: The Emerald Pity[]
A slide zone
A slide zone that does not appear in-game
One of the excavator robots
The construction zone
A location with a waterfall. This appears in-game during "Episode 6: Don't Eat the Yellow Brick Load"
Episode 6: Don't Eat the Yellow Brick Load[]
Crash wearing the Koo-ala, Shellephant and RhinoRoller skins
A big saw, seen at the end of Episode 5: The Emerald Pity
The Shellephant's zone
The RhinoRoller's zone
Episode 7: The Blizzard of Claws[]
Crash expression sheet
A location where Magmadon is found
The location where "Mosquito Bot" is found
A location appearing in Episode 6
The "Cargo Loading Robot"
Magmadon
Episode 8: Life's a Beach[]
The beach
The beach, with N-Gin's Weapons Factory in the distance
Location at the end of the level
Location where Stench is found
Episode 9: Operation Overboard[]
Episode 10: A Sludge Too Far[]
The coast from previous episodes
The factory
Scrapped section of the factory
The factory entrance from the interior
The factory entrance from the exterior, closed (left) and open (right)
Crash's skeleton
Episode 11: Shock and Awesome[]
Factory inventory
A location at the end of Episode 12: Weapons of Mass Construction
The office
The elevator
Transport tubes
The area next to the frozen arena
An area before the offices
The frozen arena
An early design of Ratcicle
Episode 12: Weapons of Mass Construction[]
The bathrooms. In-game, found during "Episode 11: Shock and Awesome"
Assembly room from Episode 11
Interior of N-Gin's Weapons Factory
An explosives warehouse, scrapped
Scrapped Doominator assembly room
A scrapped room
The giant engine of the factory
Episode 13: Doomraker[]
The conveyor belts, with the saws oriented vertically instead of horizontally
The factory
The center of the level
An arena
N-Gin's pipe organ
Arena where N-Gin is fought
Episode 14: Family Tree[]
The first slide zone
The beginning of the level
The Uka Tree
The Uka Tree entrance
A slide that appears in Episode 16: Timber Trials
Episode 15: Calamityville Horror[]
A slide zone that appeared in the previous episode
Location where Battler is found
A slide zone
Possibly scrapped slide zone
Episode 16: Timber Trials[]
One entrance to the cave
Another entrance
Image of Uka Uka's tree house
Picture of one cave with a face (This version was discarded)
Picture of another cave with a face
A cave with a very funny face
A cave full of chains
A beta version of Uka Uka's tree house
Image of the final design of Uka Uka's treehouse, with the only difference being that one could enter through the front door
Another image of the beta version of the tree house
Episode 17: Adolt Edumacation[]
(Right) Uka Uka's titan body. (Left) A cut minion of Uka Uka's
Path leading to the lab
Early design of the lab where the Evolvo-Ray is
Early design of the lab, where a brain for the Doominator is being built (This plot point is used only in the GBA version of the game)
Uka Uka vs Crash
Early designs for Uka Uka
More early designs for Uka Uka
A Crash sculpture
Episode 18: War of the Whirls[]
A kind of disco arena battle arena, scrapped from the game
(Left) Crash disapproves of Dr. Cortex's portrait. (Right) Dr. Cortex's bed, claimed by his niece. Neither of these appear in-game
Dr. Cortex
The Doominator, suspended in air
