Special Delivery

Special Delivery is the twentieth episode of Ben 10: Omniverse.

Plot
Ben is at his house when the doorbell rings. He opens the door to find Thunderpig, who claims Ben ate his father. Ben transforms into into Echo Echo and defeats him, but wrecks Mr. Baumann's car in the process. Mr. Baumann makes him deliver packages as a punishment. After delivering some of them, he goes to a bar. He gives the bartender a package, but Corvo, who is in the bar panics and runs out, taking a package from Ben instead of his own bag. At an auction, Psyphon auctions Fistina. Then he auctions a dwarf star in a package that Corvo gave him. But, inside was a goldfish. Corvo accidentally swapped the dwarf star with the goldfish. Zombozo, Fistrick, and Trumbipulor unite to get the dwarf star. Ben transforms into Armodrillo and chases them off. Then, he is attacked by Seebik and some Kraaho, but he chases them off as AmpFibian. He later arrives in a junkyard, where he is attacked by Psyphon, Fistina, Seebik, the Vreedle Brothers, Trumbipulor, Fistrick, Zombozo, Vulkanus, and Sunder. He transforms into Humungousaur to stop them from getting the dwarf star. He defeats all of them, but Psyphon absorbs the power of the dwarf star. Humungousaur can't defeat him, so he transforms into Toepick. He opens the vent on his head, revealing his hideous face and scaring Psyphon into surrendering. He finishes the deliveries, and Mr. Baumann's car is fixed. But, when he was 11, Way Big threw one of Mr. Baumann's trucks into space to stop Dr. Animo's mutant mosquito. It falls back into orbit (when Ben threw Sunder's glider into space and knocks the truck back into orbit) and wrecks Mr. Baumann's house. He gets angry, but Ben runs away. The episode ends with Mr. Baumann sitting on his recliner in the rain.

Major Events

 * Vulkanus, Gorvan, Darkstar, Raff, Sevenseven, a DNAlien (Human type), Techadon Weapon Master Number 13, Nyancy Chan, and 5 and 15-year-old Ben make their Omniverse debuts.
 * Exo-Skull and Billy Alien make their Main Timeline debuts.
 * Toepick makes his debut.
 * 11 year old Way Big makes his flashback Omniverse debut.
 * 15 year old Big Chill makes his flashback Omniverse debut.

Omnitrix Alien Debuts

 * Toepick (first appearance)

Characters

 * Ben Tennyson (5, 11, 15, and 16 years old)
 * Mr. Baumann
 * Pakmar
 * Billy Alien (first re-appearance; cameo)
 * Cow Alien (cameo)
 * Chicken Alien (cameo)

Villains

 * Psyphon
 * Zombozo
 * Fistrick
 * Trumbipulor
 * Kraaho
 * Seebik
 * Loovis Slerdlerk (first appearance)
 * Fistina
 * Tummyhead
 * Vulkanus (first re-appearance)
 * Vreedle Brothers
 * Sunder
 * Corvo
 * Thunderpig
 * Dr. Animo (flashback)
 * DNAlien (first re-appearance of Human type; flashback)

Cameo Villains

 * Dr. Psychobos
 * Gorvan (first appearance)
 * Argit
 * Solid Plugg
 * Bubble Helmet
 * Raff (first re-appearance)
 * Exo-Skull (first re-appearance)
 * Michael Morningstar (first re-appearance)
 * Sevenseven (first re-appearance)
 * Captain Kork
 * Inspector 13 (first re-appearance)
 * Piscciss Volann Prisoners (first re-appearance)
 * Mutant Mosquito (first appearance)
 * Nyancy Chan (first appearance)
 * Pickaxe Aliens

By 16 year old Ben

 * Echo Echo
 * Armodrillo
 * AmpFibian
 * Humungousaur
 * Toepick (debut)

By 15 year old Ben

 * Big Chill

By 11 year old Ben

 * Way Big

Errors

 * When 15 year old Ben transforms into Big Chill, his Omnitrix makes the sound/noise that usually comes from his current Omnitrix instead of the prototype Omnitrix's sound.
 * When Way Big knocks Dr. Animo with a truck the sky's color is different.
 * After Mr. Baumann puts on Ben's hat, and the screen pans out, Ben's Omnitrix is not there.
 * Thunderpig's symbol on his belt was not there in one scene.
 * Humungousaur had inverse colors on his Omnitrix symbol.
 * Ben's ten symbol on his shirt was black instead of white while he was chasing the Kraaho.

Trivia

 * Mr. Baumann's hatred for Ben is similar to Dennis the Menace, the movie in which Dennis ruins Mr. Wilson's life all the time.
 * It is shown the dislike between Ben and Mr. Baumann is mutual--while Mr. Baumann hates Ben for receiving property damage, even from unprovoked alien attacks, Ben hates Mr. Baumann for blaming him for damage that is either mostly not his fault or unintentional. Ben even states that Mr. Baumann "has issues".
 * Thunderpig made a reference to the Cartoon ThunderCats, when Lion-O Yells " Thunder...Thunder...ThunderCats! HO!"
 * At the beginning of the auction scene zombozo can be heard making a "Your Mom Joke" about Vilgax's mother.