Let's Meet Sonic

"Let's Meet Sonic" is the one hundred and second episode in the OK K.O.! Let's Be Heroes television series. It is a crossover episode that features Sonic and Tails from the Sonic the Hedgehog franchise. It aired on 4 August 2019 in the United States.

Synopsis
When world class hero SONIC THE HEDGEHOG visits the plaza, he teams up with K.O. to save the day.

Appearances
Characters:
 * Cream the Rabbit
 * Darrell
 * Dr. Eggman
 * Enid
 * Genesis
 * Ice Cream Lady
 * Jethro
 * K.O.
 * Metal K-0
 * Knuckles the Echidna
 * Lord Boxman
 * Mario
 * Miles "Tails" Prower
 * Nanini
 * Radicles
 * Raymond
 * Shadow the Hedgehog
 * Sonic the Hedgehog

Locations:
 * Emerald Hill Zone
 * Lakewood Plaza Turbo
 * Boxmore
 * Gar's Hero Supply & Bodega

Items:
 * Chili dog
 * Death Egg
 * Goal Plate
 * Master Emerald
 * Miles Electric
 * Pow Card
 * Rings (multiple)
 * Roboty-Makey-Machine

Vehicles:
 * Tornado

Misc.:
 * Boost
 * Homing Attack
 * Light Speed Dash
 * Roboticization
 * Shuttle loop
 * Spin Attack
 * Spin Dash
 * Super Peel Out

Continuity

 * K.O. is still working at Gar's Hero Supply & Bodega following the events of "Let's Be Friends".

Goofs

 * In one frame where Sonic can be seen jumping up into the air, one of his legs appears to be miscolored peach.

Production
On 4 April 2019, Toby Jones tweeted that he and Ian Jones-Quartey filmed the end credits shot of K.O. running from a new background with Sonic and Tails. A red square was initially placed over Sonic and Tails so as to not spoil the episode at that time.

Trivia

 * This episode was announced at San Diego Comic-Con on 19 July 2019.
 * This is the second cartoon that Roger Craig Smith and Colleen Villard have voiced Sonic and Tails in respectively, with the first being Sonic Boom.
 * This episode contains several references and Easter eggs that relate to the Sonic the Hedgehog series:
 * K.O. pulls off three poses from the Sonic series near the beginning of the episode.
 * The first pose resembles the main [[Media:GemsCollectionPlus Sonic 1.png|illustration]] of Sonic from Sonic Adventure.
 * The second pose resembles the original Japanese [[Media:Sonic 67.png|illustration]] of Sonic from the original Sonic the Hedgehog.
 * The third pose resembles Sonic's tapping foot idle animation that originated in the original Sonic the Hedgehog.
 * K.O.'s line "You never know when a legendary hero might 3D blast through our doors!" is a reference to the game Sonic 3D Blast.
 * Nanini can be seen holding a comic book in Gar's Hero Supply & Bodega that resembles Sonic Quest #2.
 * The music that plays when Sonic enters the bodega is based on "Live & Learn".
 * Another remix of this song plays when Sonic and Tails demonstrate the Spin Dash to K.O.
 * The music that plays when Tails enters the bodega is based on "Azure Blue World ...for Emerald Coast".
 * Another remix of this song plays when Tails saves Sonic and K.O. from drowning.
 * The opening title splash screen for the episode pays homage to the opening title splash screens of the Sega Genesis Sonic games, mainly Sonic the Hedgehog 2.
 * The music that plays during the opening title splash screen is a Sega Genesis-style rendition of "In the Hall of the Mountain King", which is also used in the theme song of Adventures of Sonic the Hedgehog.
 * Another remix of the song plays whenever Lord Boxman appears on-screen.
 * Another remix of the song plays when Sonic is being chased by Metal K-0.
 * Another remix plays when Lord Boxman is crushed by his 200 ton weight.
 * A final remix of the song plays during the Sonic Says segment.
 * Sonic is animated consistently with fangs, most likely referencing Sonic Adventure.
 * K.O. shows Sonic his fan artwork of his past adventures which allude to several other Sonic games:
 * The first drawing shows Sonic and Tails near an exploding Death Egg which is a reference to Sonic the Hedgehog 2.
 * The second drawing shows Sonic fighting Shadow the Hedgehog on the Space Colony ARK which is a reference to Sonic Adventure 2.
 * The third drawing depicts Sonic winning both the Summer and Winter sports games over Mario which is a reference to the Mario & Sonic series.
 * Sonic mentions his love for chili dogs, which is a reference to Adventures of Sonic the Hedgehog, though this fact has been featured in several Sonic media afterward.
 * After Darrell reveals that he tricked K.O., Sonic and Tails, he laughs like Scratch does in Adventures of Sonic the Hedgehog.
 * Sonic says "Gotta Light Speed, keed!" when he uses the Light Speed Dash to get himself, Tails and K.O. to Boxmore. This is a reference to how Sonic called Tails "keed" in several episodes of the Sonic the Hedgehog television series.
 * Ironically, Lord Boxman is voiced by Jim Cummings who voiced Dr. Robotnik in the Sonic the Hedgehog television series and the pilot episode for Adventures of Sonic the Hedgehog.
 * Lord Boxman says "Excellent! Promotions are in order!" which is a reference to the Adventures of Sonic the Hedgehog episode "Tails' New Home" in which Dr. Robotnik says "I'll have to give myself a promotion!"
 * Sonic describes himself as "the most famous hedgehog" to Lord Boxman, a reference to the slogan on the Japanese box artwork for the original Sonic the Hedgehog.
 * Lord Boxman calls Darrell and Jethro "Dumbots", which is a nickname that Dr. Robotnik often calls Scratch and Grounder in Adventures of Sonic the Hedgehog.
 * Lord Boxman describes Sonic as the "fastest thing alive", which is something that Sonic has been referred to as several times in the series. It is also the title of the theme song for the Sonic the Hedgehog television series and a song from Sonic Underground.
 * Lord Boxman claims that he went to college with Dr. Eggman. This might be a reference to Sonic Generations in which Classic Eggman mentions he may go back and get his teaching degree.
 * When K.O. uses a Spin Dash to travel through a shuttle loop, Sonic can be seen sitting in a beach chair with a table, a stereo and sunglasses that are nearly identical to the ones he is seen using in the beginning of Sonic the Hedgehog: The Movie.
 * Tails recalls his first meeting with Sonic, an event that was first described in the Japanese manual for Sonic the Hedgehog 2.
 * A Goal Plate, a common gimmick in the Sonic the Hedgehog series, can be seen being used by K.O. after he passes through the shuttle loop. Though it is initially seen as an "Exit" sign, it reveals his face as a new image on the other side of it when he passes it.
 * The way in which Enid and Rad are left under a gate with a 200 ton weight hanging above them is in reference to Amy Rose being held captive at the gate at the end of Stardust Speedway in Sonic the Hedgehog CD. The 200 ton weight is a reference to the "Sonic Ride" animation from Sonic Jam. The gate itself is designed after the one seen in the ending animation for each Adventures of Sonic the Hedgehog episode.
 * Lord Boxman calls Tails "rodent" which is a nickname Dr. Eggman has called Sonic in several pieces of Sonic media.
 * Knuckles the Echidna's gullibility is referenced when Lord Boxman tells Sonic and Tails that he tricked the echidna into giving him the Master Emerald.
 * Knuckles is reminisced upon in a crude drawing style, which is a reference to Knuckles' flashback scene from the one-shot comic, Sonic: Mega Drive, which was also presented as crude scribbles.
 * The Roboty-Makey-Machine is a reference to the Roboticizer and Roboticization. This is an subject not only shown in the games but also in Adventures of Sonic the Hedgehog, the Sonic the Hedgehog television series, Sonic Underground and the Archie Comics.
 * The sound effect that plays as the Roboty-Makey-Machine powers up is the sound effect from Sonic & Knuckles when the Great Eggman Robo charges up its laser in its second phase.
 * Interestingly, the Great Eggman Robo was also a machine powered by the Master Emerald.
 * Metal K-0 is a direct reference to Metal Sonic.
 * When Sonic is being chased by Metal K-0, the two run through a sequence resembling the animated ending of Sonic the Hedgehog CD.
 * Additionally, the two run through an area that resembles the Special Stages from Knuckles' Chaotix.
 * Sonic's line "You might know all my moves but you'll never outsmart the real-" is a reference to the line he says in his final fight against Hyper Metal Sonic in Sonic the Hedgehog: The Movie.
 * Just before Tails throws Sonic towards Metal K-0, he says "Don't worry, Sonic! Everything will be okay!" This is a reference to Tails' line in Sonic Adventure 2 anytime he pets a Chao.
 * Sonic's dislike for water and inability to swim is referenced in the episode.
 * The way in which Metal K-0 refuses Sonic's help, slaps his hand away from him and says "There is only one little buddy" as he sinks into the water is similar to the sequence of events that happened in Sonic the Hedgehog: The Movie when Hyper Metal Sonic sunk into lava. Additionally, the sound effect that plays when a character destroys Badniks that originated in the original Sonic the Hedgehog is heard when Sonic hits Metal K-0.
 * The drowning sound effect that was first used in the original Sonic the Hedgehog is played when Metal K-0 begins slowly sinks in the water.
 * The way in which Sonic Spin Attacks Metal K-0 turning him back into the normal K.O. is a reference to how characters destroy Badniks in the Sonic the Hedgehog series.
 * Lord Boxman is crushed by the 200 ton weight and is left flattened at the gate when Tails overrides his controls, which is a reference to the ending animation of Adventures of Sonic the Hedgehog.
 * Lord Boxman exclaims "I hate that hedgehog!" which is the same signature quote used by Dr. Robotnik in the Adventures of Sonic the Hedgehog television series and the various incarnations of Eggman in the Archie Comics.
 * The chain that is seen connecting the Master Emerald to the Tornado was first seen in Sonic & Knuckles.
 * K.O. says that Tails is "way past cool" which is a well known catchphrase of Sonic in the Sonic the Hedgehog television series.
 * After Tails apologizes to K.O. for being jealous of him, K.O. says "That's okay, Tails. Live and learn, right?" which is a reference to the song "Live & Learn".
 * At the end of the episode, a Sonic Says segment is held.
 * K.O. incorrectly writes "Sonic Says" as "Sonic Sez", just as Tails did in the original run of Adventures of Sonic the Hedgehog.
 * K.O. writes "Sonic Sez" with blue crayon on an orange sign, resembling the orange sign used for the original Sonic Says title cards.
 * At the end of the segemnt, Sonic says "That's no good!" in reference to the same line he said in the Sonic Says segment in the episode "Lovesick Sonic".
 * It is likely that Sonic's pose lying down was based on his pose in the second last panel on page eighteen of Sonic the Hedgehog #9.
 * When Sonic and Tails talk about Dr. Eggman, Sonic sings "He's the worst." This is a reference to the episode "Bailout" from the NBC television series Parks and Recreation where the character Jean-Ralphio Saperstein sings "She's the worst" to describe his sister.
 * Jean-Ralphio was played by Ben Schwartz who voiced Sonic in the Sonic the Hedgehog film.
 * Not understanding why Lord Boxman wants Sonic to be captured, Darrell says "He doesn't even go here." This is a reference to the 2004 film Mean Girls in which the line "She doesn't even go here!" is said by Damian Leigh.

Videos
SDCC Reveal Trailer = Second Teaser =