History MythologyGag / SonicTheHedgehog22022

* During the credits, when Robotnik is defeated, he turns to face the camera the same way he does when he takes damage in ''S3&K''.

* When Eggman summons the Orbulon-esque machine to map out the labyrinth, his gloves' beeping plays the intro notes to Final Zone.

* In this [[https://www.youtube.com/watch?v=zRGY9q-bV_Y&list=PLSPf1WnUlMROkLqy0F2NurwRk87P3PSj6&index=1 deleted scene]] when Robotnik is drinking lattes containing some [[MagicMushroom Magic Mushrooms]] we see him worp into the Robotnik from ''WesternAnimation/AdventuresOfSonicTheHedgehog'' complete with a large mouth, big fat body, and beady eyes.

* In this [[https://www.youtube.com/watch?v=zRGY9q-bV_Y&list=PLSPf1WnUlMROkLqy0F2NurwRk87P3PSj6&index=1 deleted scene]] when Robotnik is drinking lattes containing some [[MagicMushroom Magic Mushrooms]] we see him work into the Robotnik from ''WesternAnimation/AdventuresOfSonicTheHedgehog'' complete with a large mouth, big fat body, and beady eyes.

* When Eggman summons the Orbot-esque machine to map out the labyrinth, his gloves' beeping plays the intro notes to Final Zone.

* Blink and you miss it, but in the film's opening, a woman is seen walking her dog while dressed from head to toe in bright pink. A possible nod to the Sonic the Hedgehog character Amy Rose.

* When Knuckles first encounters Robotnik and sees him holding a quill from Sonic, Robotnik offers to aid Knuckles in his search for Sonic, saying "I can show you the way!" This is a reference to the "[[https://knowyourmeme.com/memes/ugandan-knuckles Ugandan Knuckles]]" meme, with the "show the way" phrasing originating from ''Film/WhoKilledCaptainAlex''.

* The way the Master Emerald's powers are treated is reminiscent of the Phantom Ruby from ''VideoGame/SonicForces'', with Robotnik's transformation bearing a few notable similarities to Infinite. He [[PowerFloats floats rather than walking]], has an eerie reverberation effect on his voice, and [[RealityWarper reshapes the world around him]] to his liking with his newfound powers in order to exact revenge on the hedgehog who's humiliated him. The Death Egg Robot is also [[HumongousMecha closer in scale]] to the ones we saw besieging the City in ''Forces'' than the one from [[VideoGame/SonicTheHedgehog2 the game]] the movie is named for, despite its head more closely resembling the "Classic" Death Egg Robot.

** [[spoiler:Just like '''06'', Sonic's transformation is not only caused by the Chaos Emeralds, but also an act of true (although familial instead of romantic) love.]]

* Robotnik's Sonic doll has tan arms like Sonic does in the main series.

* [[spoiler: Before shattering, the Master Emerald loses its glow and turns gray, just like the Chaos Emeralds do when they are drained of their energy in ''VideoGame/SonicAdventure'' and ''VideoGame/SonicUnleashed''.]]

* [[spoiler: Super Sonic once again debuts in ''Sonic the Hedgehog 2''.]]

* The pixel art music video that plays during the credits uses sprites from the originally unused Sonic 2 version of Hidden Palace Zone, specifically the large breakable Emerald and tube holding it.

* While Sonic turns Super in the ''Sonic 2'' game early if he collects all seven Chaos Emeralds and 50 rings, he quickly goes Super via Master Emerald during ''S3&K'''s final battle. [[spoiler: In the movie, the Master Emerald shatters during the final battle, but Sonic manages to wield the power of the seven Emeralds inside.]]

** Both those arcs feature Robotnik transforming into a giant, which one could take the Gaint Eggman Robot as an approximation of.