Doppelganger is an inverted version of Maxwell. He wears a blue rooster helmet, a red shirt and green pants. He has evil looking eyes, like he is angry, but the smile simply makes him look mischievous. He looks the same as Maxwell, color aside. In Scribblenauts Unlimited, he only has one bracelet while Maxwell has gloves.
About
The Doppelganger is a thief so he will steal anything apart from holdable animals, flowers, organs and subatomic particles. A notebook clone's behavior is close to Maxwell, as he goes around summoning objects, just like Maxwell. If you use a clone machine if you press interact it will make a doppelganger.
In Scribblenauts, there was one mission in which you had to slay a Shoggoth, however at the same time there were multiple Doppelgangers who will, quite menacingly, steal any weapon you summon. Since there were multiple ones, this proved that Doppelganger was just another enemy. Maxwell is slightly different from a Doppelganger, Maxwell can run, while Doppelganger can only walk. Maxwell also had a strange and funny idle after running around for a short time, where he would detach his limbs. He also had a higher attack power than Doppelganger. He is coded as "Creature", and only was fled from by a boy, or a girl. Doppelganger is coded as "monster", and most NPCs fled from him.
However, in Super Scribblenauts he appeared as the Final Boss. The level opened with Doppelganger arriving in his UFO and stealing everyone he saw, including the final starite. After defeating him, he will lie dead and can't be destroyed, no matter what you do. Some of the synonyms spawns with a Maxwell's Notebook. He also gets angry when his own object is stolen. Doppelganger is coded as a "human" object, but will only be protected by an object such as God, but not other people that protect NPCs, such as a Policeman. This is the same in Scribblenauts.
He is a thief again in Super Scribblenauts game, and will steal/pick up most objects. However, a Doppelganger is no longer a thief (as he was in Scribblenauts), but is is still considered a monster, for an odd reason.
The synonym "Twin" in Super Scribblenauts does not spawn with Maxwell's Notebook, and people do not run away from him.
Trivia
He also sees that certain objects have higher values than others. For example, he would rather steal a CD than a toy car. The objects he sees to be the least valuable are weapons and the most valuable a radio. He also doesn't seem to value a starite more than a radio. In Super Scribblenauts, he is curious about a starite and the items he takes are reduced (eg: will not pick up a bullet).
Strangely, the game does not consider Clone to be a humanoid object. Any character who isn't afraid of monsters will not flee from him, whilst ones who are scared of monsters will. This is because his personality is the opposite of Maxwell.
Amazingly, the clone can catch a projectile in Scribblenauts. This is considered a glitch due to its unavailability in Super Scribblenauts.
Maxwell's Rooster Helmet is red and his shirt his blue. Its the same thing with for the clone except its switched: His rooster helmet is blue and his shirt is red.
Despite being evil and having its emotion, he isn't hostile.
A comparison of Maxwell and his clone
He maybe is the only creature to have this characteristic. In fact, in Super Scribblenauts if adjectives are used on him such as 'Loyal,' then he becomes a powerful ally.
In Super Scribblenauts, Clone is a purchasable avatar at the start for 1000 Ollars.
When typing in both Clone and Doppelganger, one will see a slight difference. Clone, unlike Doppelganger, runs around instead of walking around. Also, some synonyms of him do an 'idle dance' that involves his limbs briefly disconnecting from his torso.
Oddly enough, one of the synonyms for this character is "twin". Since a twin is usually a brother/sister that is born at the same time as another new born baby, this could possibly hint that Clone might be Maxwell's brother. Either that or it is simply because they look the same.
He is the main villain of Super Scribblenauts, stealing the whole earth and it's belongings with his UFO, including the starite in the final mission of world 10. Maxwell chases him in space and throws starites at his ship killing him, but destroying the starite. But you can simply write a new one in that mission, and you complete the level, and the credits roll.
In Scribblenauts Remix, a clone and goblin both steal bullets.
It is possible to scare a clone with a flash bomb, but the clone has a weird scared animation.
Mimic means a person who acts like another person. In this case, the doppelganger is a mimic of Maxwell. Because he has the notebook.
In Scribblenauts Unlimited, "Female Clone" makes a Maxwell with pigtails and angry eyes, looking almost like an evil clone of the beta version of Lily .
Female variant.
In the code, there is a seperate sprite for the clone in a UFO. It is unknown why the developers did not just put clone in a UFO instead of creating an entire new sprite. Probably because when the Clone goes to the top screen it shrinks and has less evil eyes.
