Spidermonkey

He is an Arachnichimp from Aranhaschimmia. He was first used in What Are Little Girls Made Of? He can stick to walls and shoot webs out of his tail. He is also very aglie. He has an Ultimate form.

Appearance
Spidermonkey is an agile four-armed monkey. He has four eyes, resembling a real monkey. Spidermonkey has in common with Fourarms and Wildmutt because he is beast-like as well (although, since he is called "spidermonkey", he should have eight limbs, not just six). Spidermonkey can spin webs from his tail (seemingly inspired by Stinkfly's ability to eject sticky goop) which were at one point stated to be as strong as steel. However, they have also been shredded on a regular basis, and so this seems somewhat unlikely. (A note: his webbing is obviously not as strong as earth spider webbing, per thickness.) He has supernatural adhesive skills, and has superhuman agility. Also, he surprisingly can swim. In the episode Birds of a Feather, Simian (an Arachnichimp), said that their ears are better than humans.

Super Spidermonkey
Super Spidermonkey can lift up a car. He can shoot webbing from his mouth. His body is considerably larger. His muscles show, and his voice is deepened. His tail has disappeared. Super Spidermonkey can't see, but he can feel the vibrations around him.

Ben 10: Protector of the Omniverse
He has his Omniverse appearance but his head and face are the same as it appears in Alien Force and Ultimate Alien. He appears in To The Past to go ultimate. He appears in Don't Say I Didn't Warn You to enter Carl's lair.

Ben 10: Omnitrix Unlimited
He has his OV appearance. He is used by Albedo in The Negative Effect to trap Azmuth.

Appearances

 * Inspector Number 13 (used by Shiki Sakurai)

Ken 10: The Adventure Begins

 * Ken 10: Teamwork  (first re-appearance)
 * Ken 10: Training (Accidental Transformation, Selected alien was Terraspin)

Ben 10: Alien Universe / Back in Action: Alien Universe

 * Albedo Returns (by Ben)
 * Feel My Ghostly Wrath
 * Homesick Trilogy: The Final Part (by Ben)
 * Limited (BiA)

Trivia

 * In each appearance with Albedo in the episode, Spidermonkey was used by Ben.
 * Spidermonkey was redesigned in Ben 10: Alien Queen, but never used after said point.

Ben 10: Star Command Files

 * Welcome to Star Command (goes Ultimate)
 * Tangeans vs. Anodites
 * Crisis on Terradino
 * A Poisonous Return
 * Split Personality (used by Lazy Ben; goes Ultimate)

Ben 10 Infinite Forms
He makes his first reappearance in A New Threat: Part 1 to catch Argit.

Ben 10: Generations

 * First reappears in Benship as a Cameo to become Ultimate Spidermonkey

Tommy 12
Tommy gets Spidermonkey from the arachnachimps who jumped on Zachtation in Tommy 12,000,000.

Ben 10: Peace in dimensions

 * Gwen 10 Returns Part 1
 * Knight of the living rightmare
 * Khyber's preview
 * Spidermonkey Duel
 * 10.10.11

Galactic Protectors: Alien Force

 * What Are Little Girls Made Of?
 * Be-Knighted
 * Darkstar Rising
 * Good Copy, Bad Copy
 * Birds of a Feather
 * Vengeance of Vilgax: Part 2
 * Inferno
 * Fool's Gold
 * Simple
 * Single-Handed
 * If All Else Fails
 * Busy Box
 * Time Heals
 * The Final Battle: Part 1
 * The Final Battle: Part 2
 * Spidermonkey stared in three movies, Spidermonkey, Spidermonkey 2, and Spidermonkey 3.

Galactic Protectors: Ultimate Alien

 * Fame
 * Video Games
 * Andreas' Fault
 * Hero Time
 * Reflected Glory
 * Perplexahedron
 * Absolute Power: Part 2
 * The Transmognification of Eunice
 * It's Not Easy Being Chelsea
 * Carter 10,000 Returns
 * The Purge
 * Simian Says
 * Double or Nothing
 * The Perfect Girlfriend
 * The Mother of All Vreedles
 * At the end of The Ultimate Enemy: Part 2, a trailer was shown for The Amazing Spidermonkey.

Galactic Protectors: Omniverse

 * Spidermonkey stared in The Amazing Spidermonkey.
 * The More Things Change: Part 1
 * Have I Got A Deal For You
 * So Long, and Thanks for All the Smoothies?

Alien Force

 * A Familiar Face (First Appearance by Brandon Clone)
 * Deep Under (First Appearance by Brandon)

John Smith 10
After DNAliens corrupted the Arachnichimp sample, John scans Simian, making him the new DNA source.

Appearances:

 * Simian Says (John Smith 10)
 * Knight's Temple (used by Gwen)
 * Trade Off (John Smith 10) (used by Gwen) (accidental transformation; selected alien was Wildvine) (goes Ultimate)
 * The Ultimate Enemy Part 1 (John Smith 10) (used by Gwen)

Galactic Battle

 * Out of Luck
 * Traitor

Distant Worlds

 * Ninja (John Smith 10) (first re-appearance) (used by Ultimate John)
 * Fight (in Omni's head)
 * Leaf 12 (used by Ultimate John)
 * Corruption (John Smith 10) (used by Ultimate John)
 * Doctor in the House (used by Ultimate John)
 * Fitting In (used by Ultimate John)
 * Rematch
 * Dreams (goes Ultimate)

Phantom Watch

 * Darkness and Power (Drone by Phantom) (goes Ultimate)