Ben 10: Disney Expeditions

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Main Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin

On all versions

 * Swampfire - Ultimate Swampfire
 * Humongousaur - Ultimate Humongousaur
 * Spidermonkey - Ultimate Spidermonkey
 * Big Chill - Ultimate Big Chill
 * Echo Echo - Ultimate Echo Echo
 * Water Hazard
 * Armodrillo
 * NRG
 * Terraspin
 * Ampfibian
 * Alien X (only during final boss)

Wii, PS3, and PSP only

 * Cannonbolt - Ultimate Cannonbolt
 * Chromastone
 * XLR8 (unlockable)
 * Goop (unlockable)

DS only

 * Jetray
 * Fourarms
 * Upchuck (unlockable)
 * Brainstorm (unlockable)

Level Exclusive
See the list of levels

Wii, PS3, and PSP
Level exclusive characters: Mickey Mouse, Donald Duck, Goofy Bosses: Black Pete (miniboss), Vulkanus Disney series: Aladdin Level exclusive characters: Aladdin Bosses: Razoul (miniboss), Jafar Disney series: Phineas and Ferb Level exclusive characters: Phineas (part 1 only), Ferb (part 1 only), Isabella (part 1 only), Perry the Platypus (part 2 only) Bosses: NORM (miniboss; in part 1), Dr. Doofenshmirtz (in part 2) Disney series: The Little Mermaid Level exclusive characters: Ariel Bosses: Ursula (miniboss), Giant Ursula Notes: In this level, Ben and Kevin are mermen, and Gwen is a mermaid. Disney series: Cinderella Level exclusive characters: Jaq-Jaq (part 1 only), Gus (part 1 only), Prince Charming (part 2 only) Bosses: Lucifer (miniboss; in part 1), Ultimate Nemesis (in part 2) Disney series: Lilo and Stitch Level exclusive characters: Experiment 626, Dr. Jumba Jookiba Bosses: Kraab (miniboss), Captain Gantu Disney series: The Lion King Level exclusive characters: Simba, Timon, Pumbaa, Nala Bosses: Shenzi, Banzai, and Ed (miniboss), Scar Notes: In this level, Ben is a lion, Gwen is a Weasel, and Kevin is a rhino. Disney series: The Princess and the Frog Level exclusive characters: Prince Naveen, Princess Tiana, Louis the Alligator Bosses: Albedo (miniboss), Dr. Facilier Disney series: The Nightmare Before Christmas Level exclusive characters: Jack Skellington Bosses: Dr. Animo (miniboss), Oogie Boogie Notes: In this level, Ben is dressed up like a zombie, Gwen a witch, and Kevin a Frankenstien's monster. Disney series: Hercules Level exclusive characters: Hercules Bosses: The Vreedle Brothers (miniboss), Hades Disney series: N/A Level exclusive characters: Julie Yamamoto Bosses: Maleficent (miniboss), Ultimate Maleficent (final boss)
 *  Disney Town Disney series: Disney cartoons
 *  Agrabah 
 *  Danville  (parts 1 and 2)
 *  Atlantica 
 *  Castle Charming  (part 1 and 2)
 *  Deep Space 
 *  The Pridelands 
 *  New Orlenes 
 *  Halloweentown 
 *  Olympus Colliseum 
 *  Bellwood 

DS version

 * Bellwood 1
 * Agrabah
 * Danville
 * Dwarf Woodlands
 * The Beast's Castle
 * Olympus Colliseum
 * Atlantica
 * Halloweentown
 * Bellwood 2

Codes
Undefeatable = Invincibility option

Levels = Unlock all levels in Freeplay Mode

Boss = Unlock Boss Rush Mode

MaxDNA = Maximum DNA points

Combo = Use a special attack without it using up any energy option (Wii, PS3, and PSP only)

Difficult = Hard Mode option

Speedster = Unlock XLR8 (Wii, PS3, and PSP only)

Slime = Unlock Goop (Wii, PS3, and PSP only)

Hungry = Unlock Upchuck (DS only)

Intelligent = Unlock Brainstorm (DS only)

Unultimate = No ultimate form fights option (Wii, PS3, and PSP only)

Trivia

 * On the Wii, PS3, and PSP versions, if the player defeats Captain Gantu as Ben as Rath, then the extended cutscene shows Rath jumping onto Gantu and shouts "Lemme tell ya somethin', Captain Fishface! Nobody calls Rath a trog unless they expect a good beating afterwards!"