There was a scene cut out between Grounder's nose being caught in a belt and the bomb exploding.
The level "Casino Night Zone" from Sonic the Hedgehog 2 was in this episode, where it was just called the "Casino Zone".
During the race, the racers pass through an area called the "Chemical Plant Zone". This was the name of the second level in Sonic the Hedgehog 2 for the Sega Genesis.
The Special Stage is similar to the Special Stages in Sonic the Hedgehog 2, and is entered the same way.