UPGRADE

Upgrade

AKA: N/A

Species: Galvanic Mechomorph

Planet: Galvan B Special

Affiliation: Omnitrix
Official Description:
Upgrade is a biomechanical alien – a living machine with liquid metallic skin and a system of organic “circuits.� Upgrade can merge with any technology and bring it to life with enhanced abilities, like extra speed or plasma cannons. When Ben is Upgrade, he literally becomes the thing he has merged with. Acid and electromagnetic energy wreak havoc on Upgrade. (Press Kit)
Appearances:

Episodes:
104 - "Permanent Retirement"

106 - "Tourist Trap"

108 - "The Alliance"

109 - "The Last Laugh"

112 - "Side Effects"

113 - "Secrets

202 - "The Big Tick"

(cameo)205 - "Grudge Match"

210 - "They Lurk Below"

213 - "Back with a Vengeance"

301 - "Midnight Madness"

302 - "Ben 10,000"

306 - "Game Over"

309 - "Under Wraps"

311 - "Be Afraid of the Dark"

402 - "Divided we Stand"

405 - "Ben 4 Good Buddy"

S04 - "Radio Dazed"

XLR8

XLR8

AKA: N/A

Species: Kineceleran

Planet: Kinet Special

Affiliation: Omnitrix
Official Description:
XLR8 is a super-fast, highly intelligent lizard-like alien that can manipulate friction for super speed. When Ben is XLR8, he can run at speeds approaching 500 mph and even go straight up walls. XLR8 has a difficult time on non-solid ground, like mud or ice. Magnets and magnetic pulses can throw XLR8 wildly off course. (Press Kit)
Appearances:

Episodes:
101 - "And Then There Were 10"

103 - "The Krakken"1

07 - "Kevin 11"

108 - "The Alliance"

110 - "Lucky Girl"

113 - "Secrets"

201 - "Truth"

202 - "The Big Tick"

(cameo)206 - "The Galactic Enforcers"

207 - "Camp Fear"

213 - "Back with a Vengeance"

302 - "Ben 10,000"

304 - "Merry Christmas"

307 - "Monster Weather"

309 - "Under Wraps"

310 - "The Unnaturals"

311 - "The Return"

401 - "Perfect Day"

405 - "Ben 4 Good Buddy"

406 - "Ready to Rumble"

408 - "Ben 10 vs Negative 10"

(1)410 - "Goodbye and Good Riddance"

M01 - "Secret of the Omnitrix"

(3)S07 - "Let the Games Begin"

GREYMATTER

Grey Matter

AKA: N/A

Species: Galvan

Planet: Galvan Prime Special

Affiliation: Omnitrix
Official Description:
Grey Matter is five inches tall, can squeeze into tight spaces and springs quickly from danger. His slimy skin sticks to walls and makes him hard to catch. When Ben is Grey Matter, he finds that he is much smarter. Grey Matter is very weak, small and easily trampled. (Press Kit)
Appearances:

Episodes:
102 - "Washington B.C."

105 - "Hunted"

111 - "A Small Problem"

113 - "Secrets"

201 - "Truth"

205 - "Grudge Match"

208 - "Ultimate Weapon"

210 - "They Lurk Below"

211 - "Ghostfreaked Out"

213 - "Back with a Vengeance"

301 - "Midnight Madness"

304 - "Merry Christmas"

310 - "The Unnaturals"

312 - "Be Afraid of the Dark"

401 - "Perfect Day"

M01 - "Secret of the Omnitrix"

S02 - "Snack Break"

RIPJAVS

Ripjaws

AKA: Ripjaw, Razorjaws, Fishguts

Species: Pisciss Volanns

Planet: Pisciss Special

Affiliation: Omnitrix
Official Description:
Ripjaws is a monstrous alien water creature that is equal parts eel, alligator and leech, with a mouth filled with rows of razor sharp teeth. He is an incredible swimmer with claw-tipped fins. When Ben is Ripjaws, his teeth can chomp through almost anything and his lower jaw unhinges to grab bigger objects. Ripjaws is basically useless on dry land; he can't walk very well and his gills must be kept wet or he'll dehydrate rapidly. (Press Kit)
Appearances:

Episodes:
103 - "The Krakken"

109 - "The Last Laugh"

113 - "Secrets"

201 - "Truth"

202 - "The Big Tick"

(cameo)210 - "They Lurk Below"

213 - "Back with a Vengeance"

402 - "Divided we Stand"

405 - "Ben 4 Good Buddy"

S05 - "Sleepaway Camper"

WILDMUTT

Wildmutt

AKA: N/A

Species: Vulpimancer

Planet: Vulpin Special

Affiliation: Omnitrix
Official Description:
“Wildmutt is a bizarre, beastly alien. Like an animal he has astonishing athletic ability and a heightened sense of smell, hearing and taste. Quills on his back can be fired off like projectiles. Wildmutt has no eyes. When Ben is Wildmutt, he has no way of communicating verbally, just snarls and growls.” (Press Kit)
Appearances:

Episodes:
101 - "And Then There Were 10"

104 - "Permanent Retirement"

106 - "The Last Laugh"

110 - "Lucky Girl"

112 - "Side Effects"

113 - "Secrets

201 - "Truth"

202 - "The Big Tick"

(cameo)203 - "Framed"

207 - "Camp Fear"

209 - "Tough Luck"

211 - "Ghostfreaked Out"

(dream)213 - "Back with a Vengeance"

301 - "Midnight Madness"

304 - "Merry Christmas"

309 - "Under Wraps"

313 - "The Visitor"

409 - "Ben 10 vs Negative 10"

(2)M01 - "Secret of the Omnitrix"

S06 - "Dogged Pursuit"

STINKFLY

Stinkfly

AKA: N/A

Species: Lepidopterran

Planet: Lepidopterra Special

Affiliation: Omnitrix
Official Description:
Stinkfly is an insectoid alien and resembles a mutated dragonfly. He is a very acrobatic flyer and is able to pull off amazing moves. His sharp tail and pinchers can be used as weapons. When Ben is Stinkfly, he can combat his enemies in the air. While his exoskeleton skin is very tough, Stinkfly?s wings are very weak, so Ben must be careful with them. Stinkfly is vulnerable to poisons and gases. (Press Kit)
Appearances:

Episodes:
102 - "Washington B.C"

103 - "Krakken"

106 - "Tourist Trap"

107 - "Kevin 11"

113 - "Secrets"

202 - "The Big Tick"

207 - "Camp Fear"

208 - "Ultimate Weapon"

209 - "Tough Luck"

210 - "They Lurk Below"

213 - "Back with a Vengeance"

302 - "Ben 10,000"

303 - "A Change of Face"

304 - "Merry Christmas"

308 - "Super Alien Hero Buddy Adventures"

311 - "The Return"

408 - "Ben 10 vs Negative 10" (1)

HEATBLAST

Heatblast

AKA: N/A

Species: Pyronite

Planet: Pyros Special

Affiliation: Omnitrix
Official Description:
Heatblast is basically living fire, able to project fire and absorb heat. When Ben is Heatblast, he can put out a fire just as easily as he can start one. Small amounts of water aren't a problem, but oceans, lakes and even swimming pools can be big trouble for Heatblast. (Press Kit)
Appearances:

Episodes:
101 - "And Then There Were 10"

102 - "Washington B.C."

104 - "Permanent Retirement"

106 - "Tourist Trap"

107 - "Kevin 11"

108 - "The Alliance"

112 - "Side Effects"

113 - "Secrets"

202 - "The Big Tick"

213 - "Back with a Vengeance"

301 - "Midnight Madness"

307 - "Monster Weather"

308 - "Super Alien Hero Buddy Adventures"

313 - "The Visitor"

404 - "Big Fat Alien Wedding"

409 - "Ben 10 vs Negative 10"

(2)M01 - "Secret of the Omnitrix"

(1)S03 - "Survival Skills"
Images:

GHOSTFREAK

Ghostfreak

AKA: Zs'skayr

Species: Ectonurite

Planet: Anur Phaetos Special

Affiliation: Omnitrix
Official Description:
A shadowy, phantom-like alien, Ghostfreak can turn invisible and phase through solid matter like walls. When Ben is Ghostfreak, he exhibits minor abilities in telepathy and telekinesis. Daylight and direct focused light can make Ghostfreak useless. (Press Kit)
Appearances:

Episodes:
104 - "Permanent Retirement"

105 - "Hunted"

107 - "Kevin 11"

109 - "The Last Laugh"

113 - "Secrets"

202 - "The Big Tick"

(cameo)211 - "Ghostfreaked Out"

DIAMONHEAD

Diamondhead

AKA: N/A

Species: Petrosapien

Planet: Petropia Special

Affiliation: Omnitrix
Official Description:
Diamondhead is made out of a material that is harder than diamond crystals and nearly indestructible. When Ben is Diamondhead, he can refract light and beam based weaponry and can slice anything he wants to bits. His sharp edges make it difficult for Diamondhead to rescue friends. He is also vulnerable to sound based attacks. (Press Kit)
Appearances:

Episodes:
101 - "And Then There Were 10"

105 - "Hunted"

113 - "Secrets"

202 - "The Big Tick" (cameo)

203 - "Framed"

205 - "Grudge Match"

213 - "Back with a Vengeance"

302 - "Ben 10,000"

303 - "A Change of Face"

309 - "Under Wraps"

310 - "The Unnaturals"

313 - "The Visitor"

401 - "Perfect Day"

404 - "Big Fat Alien Wedding"

408 - "Ben 10 vs Negative 10" (1)

410 - "Goodbye and Good Riddance"

S08 - "Handle with Care"

FOUR ARMS

Fourarms

AKA: N/A

Species: Tetramand

Planet: Khoros Special

Affiliation: Omnitrix
Official Description:
Fourarms is 10 feet tall with four powerful arms and dense armor-plated skin. He can create a sonic wave by clapping all four hands together at once. As Fourarms, Ben can leap over several houses in a single bound. However, Fourarms isn’t fast and his huge size makes him clumsy. (Press Kit)
Appearances:

Episodes:
101 - "Washington B.C."

103 - "The Krakken"

106 - "Tourist Trap"

107 - "Kevin 11"

108 - "The Alliance"

110 - "Lucky Girl"

112 - "Side Effects"

113 - "Secrets"

202 - "The Big Tick"

203 - "Framed"

205 - "Grudge Match"

206 - "Galactic Enforcers"

208 - "Ultimate Weapon"

209 - "Tough Luck"

211 - "Ghostfreaked Out"

213 - "Back with a Vengeance"

306 - "Game Over"

307 - "Monster Weather"

308 - "Super Alien Hero Buddy Adventures"

309 - "Under Wraps"

310 - "The Unnaturals"

313 - "The Visitor"

401 - "Perfect Day"

406 - "Ready to Rumble"

409 - "Ben 10 vs Negative 10"

(2)M01 - "Secret of the Omnitrix"

S01 - "Hijacked"