Extra Content

Extra Content is a term for certain concept art for Epic Mickey. They are unlockables in the game. They physically appear as a floating piece of paper with a pencil drawing Mickey's head. There are 50 of them in total. Unlike other collectibles, like Pins and Film Reels, it's possible to collect all of them in a single playthrough.

Dark Beauty Castle

 * The Mad Doctor's Lab I: Found on a floor behind some wood revealed after the return there.
 * The Mad Doctor's Lab II: Found in the hidden room of the Mad Doctor's Lab after Mickey defeats the Mechanical Arm.
 * Dark Beauty Castle I: Found in the Courtyard under the thinnable base of the left ramp.
 * Oswald and Ortensia: Found in the Throne Room.
 * Sleeping Ortensia: behind the control panel in the Fireworks Control Tower
 * Horning Blot: In one of the towers with the real Blot

Gremlin Village

 * Tunnels: Offered by Tiestow if Mickey patched the steam pipes.
 * Spatter Springs Up: Found in the Ticket Booth on the boat under the gears.
 * Pirate Gate: In the Jungle Boat Ride, Mickey must jump on the plants under the Animatronic Hippo near Gremlin Pinza and get it; it's behind the Giraffe.
 * World of Gremlins II: In the Asian Boat Ride, Mickey must thin out the lower part of the Goddess of Sun near the exit. He has to ride on the clouds to get it.
 * World of Gremlins I: In Gremlin Village, Mickey must erase the pink thinnable wall to the right of the entrance and enter the secret area with the smashing platforms. The platforms can kill him with a hit. He must get past them while avoiding being squished.
 * Inky Mickey: Mickey must complete the "Find Small Pete's Ship Log" Quest and enter the Colosseum to get Small Pete to open a room of treasure.

Mean Street

 * Mean Street: Mickey must get on top of the Train Station and get it.
 * Mickey Faces I: Available for sale in the Emporium for 200 E-Tickets on Mickey's first visit.
 * Mickey Faces II: Available for sale in the Emporium for 200 E-Tickets on Mickey's second visit (after Mickeyjunk Mountain).
 * Thinner Falls: Available at the Emporium for 200 E-Tickets after Mickey returns from Mickeyjunk Mountain.
 * Mickey Faces III: Available for sale in the Emporium for 200 E-Tickets on Mickey's third visit (after Tomorrow City).
 * Mickey Faces IV: Available for sale in the Emporium for 200 E-Tickets on Mickey's fourth visit (after Tortooga)
 * Fantasyland: Buy from Ice Cream Parlor (after Tortooga).
 * Blot Roar: Buy from Emporium (after Tortooga).
 * Mickey & Oswald: Found in Walt's Apartment on top of the Firehouse.

OsTown

 * Ortensia's House: Mickey must thin out the wall between the real house and Clarabelle's house to get it.

Mickeyjunk Mountain

 * Bunny Children: Mickey must hit the Gumball switch and get it.
 * Mickeyjunk Mountain I: Mickey must jump on the blocks and get it.
 * Mickey Faces I: It can be bought on the first visit to Mean Street.
 * Epic Mickey: Mickey must go through the Birthday Poster and get launched by the steamer.
 * Oswald's Throne: Behind his throne.
 * Oswald Poses: On the Mickey Mouse arm found in Oswald's sanctuary.

Tomorrow City

 * Tomorrow City: In Tomorrow Square, thin the floor on the rear walkway leading to the Rocket Ride control panel, then follow the walkway below to a wall that can be smashed.
 * Petetronic: In Space Voyage smash a wall across a glass room.
 * Space Voyage: Defeat Petetronic in either way.

Ventureland

 * Mickey Spill: Purchase from Tiki Hut Store.
 * Thinner Pump: Buy from smaller Hut Shop (available only if you fix the machine in Skull Island).

Pirates of the Wasteland

 * Sea Battle: In Skull Island, thin a wooden wall beneath Pete Pan's perch.
 * Animatronic Croc: In the Jolly Roger, cross the masts and drop behind the ship's stern to find this one.

Bog Easy

 * Lonesome Manor Passage: Located near Louis' shack.
 * Bog Easy: Purchase from Bertrand's shop after helping the Organ.

Lonesome Manor

 * Lonesome Manor II: In the Graveyard, thin out the window on the right side of the upper balcony.