Ditto

Ditto is the Omnitrix's DNA sample of a Splixson from the planet Hathor.

Appearance
Ditto is about the height of an average human child. He has white skin, a black and white head, white face, along with black shoulders. Ditto’s hands are large with 4 digits and his feet are merely stubs. He has three fin-like growths on their head. Ditto also has gem-like orbs on his arms and three button-like gems on his waist. Ditto's clothes are black and have an overall-like design. Ditto wears the Omnitrix symbol on his forehead in the original series.

In Ultimate Alien, the white section outlining the hourglass symbol across his chest and on his arms is now blue. Ditto wears the Ultimatrix symbol on his chest.

In Omniverse, 11 year-old Ditto's fins on his head are white and the ones on the side are connected to his eyes. He also has two small whiskers on each of his cheeks. His fingers are now sharper and the green orbs on his shoulders are gone. He has gems like the three on his waist on his shoulders and wrists. His neck is completely black. He also seems smaller and stubbier. The feet of his suit also cut off to reveal three cat-like toes on each foot.

16 year old Ditto looks similar to his 11 year old self, except he has green fins rather than white, and his jumpsuit is now green with black patches under his arms, green sleeves, and black ankles. This jumpsuit also seems to have a design based on the Omnitrix symbol with black triangles on the shoulders and green in the center. The three gems on his waist are now on a black belt.

Powers and Abilities
Ditto has the ability to clone himself with no limit. While it is like actually splitting in half in the original series, in Omniverse, it is similar to Echo Echo, where he is able to split and re-merge at a fast pace.

Each Ditto operates independently, regardless of what the others want them to do and each clone is indistinguishable from the others. This allows Ditto to do multiple tasks simultaneously or to cover a large area. One tactic in Omniverse, is that Ditto is able to extend his reach across a vast distance, simply by cloning himself in a straight line, thereby forming a chain of Dittos.

The raised green bumps on Ditto's body are sensor nodes, which help create a sensory web around the Ditto clones. This sensory web allows the clones to share senses and physical sensations.

Ditto is more flexible than a human.

Ditto is quite agile and can burrow into the ground and pop out like a mole, as shown in A Fistful of Brains.

Ditto can breathe underwater.

Ditto can jump surprisingly high for his size as shown in Divided We Stand; while playing basketball, he slam dunked the ball on a hoop that would be difficult for an average human to jump high enough to do.

Weaknesses
Ditto's clones share a link with each other, making it so that if one Ditto is hurt, all the others feel the same pain.

If the original Ditto is killed, the clones are automatically killed as well, thus negating the ability to form an army of clones.

Due to the fact that each Ditto is only about as strong, fast and has the reach of a small human child, this puts him at a disadvantage when facing off against a bigger, stronger foe. Normally, Ditto compensates by overwhelming his opponent with sheer force of numbers.

If the Dittos cannot agree on one plan, an argument will break out between them.

If the Dittos are too far apart from each other, he cannot change back into Ben. In Divided We Stand, when Ditto was divided and could not transform back into Ben until they were close enough to; it seems that his Omnitrix uses up more power than normal, as seen when he could only transform into Upgrade for a fraction of his normal time.

Ben 10

 * Ditto first appeared in Divided We Stand,
 * Ditto fought Animo's mutant seagull.
 * Ditto played basketball, and later one Ditto was caught by Animo to have his DNA copied.
 * Later, Ditto defeated Animo's army of Mutant Lepidopterrans.
 * In Ready to Rumble,
 * Ditto defeated Mr. Beck and saved Mrs. Fang.

Ultimate Alien

 * In Ben 10,000 Returns,
 * Ditto was re-unlocked by Ben 10,000.

11 year old Ben

 * Ditto returned in Ben Again,
 * where he battled Eon, though technically this was done with 16-year-old Ben's mind in his 11-year-old Ben's body.

16 year old Ben

 * In O Mother, Where Art Thou?,
 * Ditto was used to fight Pretty Boy Vreedle clones and chase Ma Vreedle.
 * In A Fistful of Brains,
 * Ditto and his clones tried to escape from Panuncian, his natural predator, but failed at the end.
 * In Animo Crackers,
 * Ditto tried to chase Chrono Spanner, but was attacked by Future Dr. Animo.
 * in Universe Vs. Tennyson,
 * Ditto fought Fistrick, but reverted back.

Appearances
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Ben 10

 * Divided We Stand (x3; first appearance; first transformation was accidental, selected alien was Stinkfly)
 * Ready to Rumble (accidental transformation, selected alien was Four Arms)

11 year old Ben

 * Ben Again (first re-appearance; 16 year old Ben in 11 year old Ben's body)

16 year old Ben

 * O Mother, Where Art Thou? (first re-appearance; by 16 year old Ben)
 * A Fistful of Brains
 * Animo Crackers
 * Universe Vs. Tennyson}}

Ben 10: Alien Force

 * Alien Creation Figures from (Ben 10) Ditto and Way Big

Ben 10: Omniverse

 * 4" Ditto (coming soon)

Trivia

 * According to himself in Divided We Stand, Ditto is neither fast nor strong.
 * According to Ben in Hot Stretch, according to his fansites, Ditto is his cutest alien.
 * Ditto seems to be a homage to the Warners from Animaniacs, having an iconic voice actor, similar mannerisms and similar color layout.