Hedgehog Day

"Hedgehog Day" is the twentieth episode in the Sonic Boom television series. It first aired on 18 February 2015 in France and on 4 April 2015 in the United States.

Synopsis
After an explosion at his evil lair sends him into a time loop, Eggman relives the same day over and over. He must convince Sonic and the gang to help him fix this time anomaly.

Characters

 * Sonic the Hedgehog
 * Miles "Tails" Prower
 * Knuckles the Echidna
 * Amy Rose
 * Sticks the Badger
 * Comedy Chimp
 * Lady Goat
 * Mike the Ox
 * Wild Cat
 * Dr. Eggman
 * Orbot
 * Cubot
 * Crab Bot

Plot
The sun rises at Eggman's lair, and Dr. Eggman awakens from his slumber. Orbot enters the doctor's bedroom with breakfast, stating that Eggman's new weapon will definitely defeat Sonic today, After Cubot confirms that the preparations are complete, Eggman enters the weapon, called the Egg Tank. He observes Team Sonic's movements, which show them getting ready to watch a movie outside Sonic's Shack, and then departs to engage them. Later, as the heroes enjoy a film starring Comedy Chimp, the Egg Tank finally appears with a Crab Bot vanguard, prompting a fight to break out. Sonic and his friends have little trouble with the robots, and Tails converts his movie projector into a weapon that uses the film's audio as destructive soundwaves. After the destruction of several minions, Eggman fires a plasma ball called his "Super Weapon" at Sonic; the shot pursues him until Amy deflects it with her hammer. Anticipating this, Eggman counters it with a laser shot from his "Super Duper Weapon", but just as the two energy blasts collide, a passing thundercloud sends a lightning bolt in between them, cause a blinding explosion of light.

Back at his lair, Eggman wakes up from his slumber but is puzzled upon seeing Orbot behave identically from the day before. Regardless, he attacks Team Sonic with the Egg Tank again, but the fight ends with an explosion of light like before, and Eggman mysteriously returns to his bedroom by morning. Orbot enters the room in exactly the same way as before, making Eggman realize that he is experiencing the same day over and over. This time around, he analyzes the situation in his laboratory and eventually discovers that the collision between his laser, his plasma ball, and stray lightning bolt created a fusion reaction that trapped him in a time loop. Eggman believes that simply not fighting Sonic will prevent the time loop from occurring, until he is inexplicably subjected to one and back in bed. Eggman then sees this predicament as an opportunity to hone his Egg Tank scheme into a success. After a few tries, Eggman finally perfects his plan: he forces Sonic and Tails to pick a silent movie from the rental store to render Tails' movie projector weapon useless, preventing him from stopping a Crab Bot from disarming Amy; as Sonic is distracted by this, Eggman fires his plasma ball, which traps Sonic in an energy sphere. Eggman celebrates after finally besting Sonic, until the time loops occurs again, and the whole day is reset.

At his wit's end, Eggman tries to solve the time loop, while doing a few things he normally would not do, like eat junk food and cut his mustache. When he cannot solve the problem, Eggman turns to Sonic and Tails for help; the duo are skeptical until Eggman correctly predicts two upcoming events, and forces them to help by revealing their movie's ending. At Meh Burger, Eggman discusses how the reaction he caused endlessly repeats itself by recharging itself after occurring, when Tails comes to a solution. Unfortunately, Eggman must redo the day and convince Tails two more times before he can hear it. Tails' idea is to contain the reaction by using a super-dense material, so Eggman spends one reset day creating a container in his lab. He spends another reset day when Sonic suggests Knuckles can carry the container to the beach as it is too heavy to him to move. When Knuckles is brought to the lab, he winds up stalling for time, forcing Eggman into at least three more loops. He then has Amy make Knuckles explain, and he confesses that he fears having his tooth pulled by the dentist tomorrow; Amy tries to console Knuckles, but Sticks solves this by pulling out his tooth herself, which convinces him to comply and contain the reaction.

Following another time loop, Eggman wakes up from bed, and upon hearing Orbot making a different breakfast, is overjoyed that the time loop has finally ended. He hugs Orbot, but upon doing so is exposed to a flash of light; fortunately, it was just Cubot taking a picture of the moment.

Goofs

 * In the Meh Burger scene, Mike the Ox's attire, horns and ears are all colored grey.

Trivia

 * The title and plot of this episode is a parody of the movie Groundhog Day.
 * The coloring error for Mike the Ox in this episode is the same as the one seen in "The Sidekick".