Beginnings (Origins: Part 1)

During the scene where Sonic is about to leave on a mission to Robotropolis, Uncle Chuck says "come on boy, jelly and jam time!" in which case, Sonic corrects him by saying "That's JUICE and jam time". This is a reference to Ben Hurst accidentally writing "Jelly and jam time" a few times in Sonic, o Ouriço (1993) in which the correct phrase is also "Juice and jam time".

When Robotnik is alerted that something is approaching the force field which happens to be Sonic, The gold line in the center of his outfit is missing.

References Sonic, o Ouriço (1993)